One-word substitution
A one word substitution list with 130+ words for people, systems, professions and sounds, each with a simple meaning and an example sentence.
In this lesson
One word substitution means replacing a long phrase with a single word that has the same meaning. For example, “a person who speaks many languages” becomes polyglot. Using one-word substitutes makes your writing shorter and more precise, and it is a common question type in English tests and competitive exams.
Key point
A one-word substitute replaces a whole phrase with one word: a person who walks in their sleep is a somnambulist. Use the single word when it fits the context and your reader will understand it.
How do one-word substitutes work?
Most one-word substitutes are nouns for people (atheist, florist), nouns for systems or subjects (democracy, zoology) or adjectives (ambidextrous, omniscient). Many come from Greek or Latin, so their parts often give you a clue to the meaning.
Tip
Learn the word parts. -cracy means “rule by” (democracy, plutocracy), -logy means “the study of” (zoology, petrology), -ist, -er and -or often mean “a person who” (florist, lexicographer, sculptor), and omni- means “all” (omniscient).
One word substitution list for people
These words describe people by their beliefs, habits, character or abilities.
| Word | Meaning | Example |
|---|---|---|
| agnostic | A person who is not sure whether God exists. | As an agnostic, he says nobody can know the truth about God. |
| arsonist | A person who deliberately sets fire to a building. | The police arrested the arsonist who burned down the factory. |
| amateur | A person who does something for pleasure, not as a job. | He plays football as an amateur at weekends. |
| ambidextrous | Able to use either hand equally well. | She is ambidextrous, so she can write with both hands. |
| ambivert | A person who has features of both an extrovert and an introvert. | As an ambivert, I enjoy parties, but I also need quiet time. |
| auditor | A person who officially examines an organisation’s accounts. | The auditor checked the company’s accounts for mistakes. |
| autocrat | A ruler who has unlimited power. | The autocrat made every decision without asking anyone. |
| anarchist | A person who wants, or tries to cause, a society without government. | The anarchist believed that all governments should be removed. |
| apostate | A person who has given up their religious faith. | He was called an apostate after he left the church. |
| atheist | A person who does not believe that God exists. | My friend is an atheist, but he respects all religions. |
| arbitrator | A person chosen by two sides to settle a dispute. | The two companies asked an arbitrator to settle their dispute. |
| ascetic | A person who lives a simple, strict life without comforts. | The ascetic lived alone in the forest and ate very little. |
| bohemian | A person who lives in an unconventional, often artistic, way. | The painter lived like a bohemian in a small studio. |
| cacographer | A person who is bad at spelling. | He is a cacographer, so he always uses a spellchecker. |
| cannibal | A person who eats human flesh. | In the old adventure story, the sailors were afraid of cannibals. |
| centenarian | A person who is 100 years old or older. | My great-grandmother is a centenarian; she is 101. |
| chauvinist | A person who is blindly devoted to an idea, or aggressively patriotic. | A chauvinist believes that his own country is always right. |
| chirographer | A person who is an expert in handwriting. | The old letters were written by a skilled chirographer. |
| connoisseur | An expert judge of art, food, drink or other fine things. | My uncle is a connoisseur of Ceylon tea. |
| contemporary | A person who lives at the same time as another person. | Shakespeare and Cervantes were contemporaries. |
| convalescent | A person who is getting better after an illness. | The convalescent rested at home for two weeks after the operation. |
| coquette | A woman who flirts with men. | In the old novel, the coquette flirts with every guest at the ball. |
| cosmopolitan | A person who regards the whole world as their country. | As a true cosmopolitan, she feels at home in any city. |
| cynosure | A person or thing that is the centre of attention. | The bride was the cynosure of all eyes at the wedding. |
| cynic | A person who sneers at the beliefs and good intentions of others. | Don’t be such a cynic; some people really do want to help. |
| demagogue | A leader who wins ordinary people’s support with powerful, emotional speeches. | The demagogue made big promises to the angry crowd. |
| debonair | Confident, stylish and charming, usually used about a man. | The debonair actor smiled at the cameras. |
| dilettante | A person who dabbles in art, science or literature without serious study. | He is a dilettante who paints a little and writes a little. |
| epicure | A person who takes great pleasure in fine food and drink. | As an epicure, she always looks for the best restaurants. |
| egotist | A person who often talks about their own achievements. | The egotist talked about his own success all evening. |
| emigrant | A person who leaves their own country to live in another. | Many emigrants left Ireland for America in the 1800s. |
| effeminate | Describes a man who behaves in a way seen as typical of women. | Critics once called the singer’s style effeminate. |
| extrovert | A lively, confident person who enjoys being with other people. | My sister is an extrovert who loves parties. |
| fastidious | Very careful about details and hard to please. | He is fastidious about keeping his desk tidy. |
| fugitive | A person who is running away from the police or justice. | The fugitive was caught at the airport. |
| fanatic | A person with excessive enthusiasm, especially in religious matters. | The fanatic refused to listen to any other views. |
| fatalist | A person who believes that fate controls everything. | As a fatalist, he always says, “What will be, will be.” |
| gourmand | A person who loves good food, sometimes eating too much. | The gourmand ordered three desserts. |
| honorary | Given as an honour, without the usual duties or requirements. | The university gave the singer an honorary degree. |
| heretic | A person whose beliefs go against the accepted teaching of a religion. | In the Middle Ages, heretics were often punished. |
| highbrow | A person with intellectual or highly educated tastes. | She is a highbrow who reads philosophy for fun. |
| humanitarian | A person who works to improve people’s lives and reduce suffering. | The humanitarian spent years helping refugees. |
| hypochondriac | A person who always worries about being ill, often without reason. | My uncle is a hypochondriac who visits the doctor every week. |
| henpecked | Describes a husband who is controlled by his wife. | The henpecked husband always does what his wife says. |
| indefatigable | Never getting tired; always working with energy. | The indefatigable nurse worked all night. |
| iconoclast | A person who attacks cherished ideas or traditional institutions. | The young director is an iconoclast who breaks the rules of film-making. |
| introvert | A shy, quiet person who prefers to spend time alone. | As an introvert, he enjoys reading at home. |
| immigrant | A person who comes to live in a new country. | Many immigrants live and work in London. |
| immoral | Behaving without moral principles. | Stealing from the poor is immoral. |
| impregnable | So strong that it cannot be captured or broken into. | The castle on the hill was impregnable. |
| insolvent | Not having enough money to pay your debts. | The company became insolvent and closed. |
| lunatic | An old, now offensive, word for a person who is mentally ill. | Some lunatic drove straight through the red light. |
| misanthrope | A person who dislikes people and avoids human society. | The old misanthrope lived alone and spoke to no one. |
| mercenary | A person who cares only about money, even at the cost of ethics. | Don’t trust him; he is a mercenary who only cares about money. |
| narcissist | A person who is too interested in and in love with themselves. | The narcissist took hundreds of selfies every day. |
| numismatist | A person who collects or studies coins. | The numismatist showed us coins from ancient Rome. |
| omniscient | Knowing everything. | The story is told by an omniscient narrator. |
| optimist | A person who always looks at the positive side of things. | She is an optimist who sees the good in everything. |
| parasite | A person who lives on others without giving anything back. | He is a parasite who never pays for anything. |
| pessimist | A person who always looks at the negative side of things. | A pessimist sees problems in every plan. |
| philogynist | A person who likes or admires women. | The writer was a philogynist who wrote about strong women. |
| philanthropist | A person who loves humankind and helps others, often by giving money. | The philanthropist gave money to build a new school. |
| polyglot | A person who speaks several languages. | The polyglot speaks English, Sinhala, Tamil and French. |
| recluse | A person who lives alone and avoids other people. | The writer became a recluse in his old age. |
| somnambulist | A person who walks while asleep. | The somnambulist walked into the kitchen in the middle of the night. |
| somniloquist | A person who talks while asleep. | My brother is a somniloquist; he talks in his sleep every night. |
| stoic | A person who accepts pain and pleasure calmly, without complaining. | He was a stoic who never complained about his illness. |
| termagant | A bad-tempered woman who often scolds and nags. | In the play, the termagant shouts at everyone. |
| uxorious | Showing great or excessive love for your wife. | The uxorious husband bought his wife flowers every day. |
| virtuoso | A person with outstanding skill in music or another art. | The young violinist is a virtuoso. |
Common mistake
He doesn’t believe in God, so he is an agnostic. → He doesn’t believe in God, so he is an atheist.
An atheist does not believe that God exists. An agnostic is not sure, or believes that nobody can know.
One-word substitutes for government and systems
Most of these words end in -cracy or -archy, which both mean “rule” or “government”.
| Word | Meaning | Example |
|---|---|---|
| anarchy | Disorder because there is no government or controlling authority. | After the king died, the country fell into anarchy. |
| aristocracy | Government by the nobility, or the class of noble families. | In the past, the aristocracy owned most of the land. |
| autocracy | A system of government by one person with absolute power. | The country was an autocracy ruled by one man. |
| autonomy | The right of a country or region to govern itself. | The region won autonomy from the central government. |
| bureaucracy | A system in which state officials, not elected representatives, make most decisions. | Bureaucracy can make simple tasks very slow. |
| democracy | Government by the people, usually through elected representatives. | In a democracy, citizens vote for their leaders. |
| gerontocracy | A state, society or group governed by old people. | Critics called the country a gerontocracy because all its leaders were very old. |
| kakistocracy | Government by the worst, least qualified or most dishonest citizens. | The writer joked that the town council had become a kakistocracy. |
| monarchy | A system of government with a king or queen at the head. | The United Kingdom is a monarchy. |
| neocracy | Government by new or inexperienced people. | The ministers were so young that critics called the government a neocracy. |
| ochlocracy | Government by the populace; mob rule. | Without fair laws, a democracy can turn into an ochlocracy. |
| oligarchy | A small group of people who control a country or organisation. | The country was run by an oligarchy of rich families. |
| plutocracy | Government by the wealthy. | Some people fear that their country is becoming a plutocracy. |
| secular | Not connected with religious or spiritual matters. | A secular state treats all religions equally. |
| thearchy | Government by God or by gods. | The ancient city was a thearchy ruled in the name of its gods. |
One-word substitutes for professions and research
These words name jobs and fields of study. Words ending in -logy or -ics are subjects; words ending in -er, -or or -ist are usually people.
| Word | Meaning | Example |
|---|---|---|
| alchemy | The medieval forerunner of chemistry. | In alchemy, people tried to turn ordinary metals into gold. |
| anchor | A person who presents a news programme on radio or television. | The news anchor read the headlines at nine o’clock. |
| anthropologist | A person who studies human societies and how humans developed. | The anthropologist lived with the villagers for a year. |
| astronaut | A person trained to travel in a spacecraft. | The astronaut spent six months in space. |
| botany | The scientific study of plants. | She studied botany because she loves plants. |
| cartographer | A person who draws or produces maps. | The cartographer drew a new map of the coast. |
| calligrapher | A person who is skilled in beautiful handwriting. | The calligrapher wrote our wedding invitations by hand. |
| choreographer | A person who creates the steps and moves for a dance. | The choreographer taught the dancers a new routine. |
| chauffeur | A person employed to drive a private or hired car. | The chauffeur opened the car door for the minister. |
| compere | A person who introduces the performers in a show. | The compere told jokes between the acts. |
| curator | A person who looks after a museum’s or gallery’s collection. | The curator showed us the museum’s oldest paintings. |
| chronobiology | The branch of biology that studies natural body cycles, such as sleep. | Chronobiology helps explain why we feel sleepy at night. |
| cypher | A secret or disguised way of writing; a code. | The spies sent their messages in cypher. |
| demography | The study of population statistics, such as births and deaths. | Demography shows that the population is getting older. |
| dactylology | Using the fingers and hands to communicate ideas; finger spelling. | Dactylology helps deaf people spell out names with their fingers. |
| florist | A person who sells and arranges cut flowers. | The florist made a beautiful bouquet. |
| genealogy | A line of family descent from an ancestor, or the study of it. | My aunt studies genealogy and has traced our family back 200 years. |
| heliotherapy | The use of sunlight to treat illness. | The clinic offered heliotherapy for some skin problems. |
| horticulture | The art or practice of growing and managing gardens. | He studied horticulture and now works in a botanical garden. |
| invigilator | A person who watches students during an exam. | The invigilator told us to put our phones away. |
| jurisprudence | The theory or philosophy of law. | She studied jurisprudence at law school. |
| lexicographer | A person who writes or compiles dictionaries. | Samuel Johnson was a famous lexicographer. |
| odontology | The scientific study of the structure and diseases of teeth. | Odontology helps dentists understand tooth disease. |
| radio jockey | A person who presents a radio programme. | The radio jockey played my favourite song this morning. |
| rhetoric | The art of effective or persuasive speaking or writing. | The politician used powerful rhetoric in her speech. |
| petrology | The study of the origin, structure and composition of rocks. | Students of petrology examine rocks under a microscope. |
| psephologist | A person who studies elections and trends in voting. | The psephologist predicted the election result correctly. |
| sculptor | An artist who makes sculptures. | The sculptor carved a statue from marble. |
| zoology | The scientific study of animals. | My cousin is studying zoology at university. |
Note
Radio jockey is common in South Asian English; in British English people usually say radio presenter or DJ. Compere is mainly British, and American English often uses host. Cypher is also spelt cipher.
One-word substitutes for sounds
English has special verbs for the sounds that animals make: The ducks quack. Many of them also work as nouns: the quack of a duck. You can learn the animals themselves in our lesson on animal names in English, and see more examples in the Cambridge Dictionary list of animal sounds.
| Word | Meaning | Example |
|---|---|---|
| acoustics | The branch of physics concerned with the properties of sound. | Acoustics is the study of how sound travels. |
| bellow | The sound of alligators. | Alligators bellow loudly in spring. |
| bell | The sound of deer. | In autumn, male deer bell to attract females. |
| caw | The sound of crows. | The crows cawed loudly from the trees. |
| cackle | The sound of geese. | The geese cackled when the farmer came near. |
| cluck | The sound of hens. | The hens clucked in the yard. |
| click | The sound of dolphins. | Dolphins click to find food in dark water. |
| croak | The sound of frogs. | Frogs croak loudly after the rain. |
| chirp | The sound of crickets (some older lists say creak). | Crickets chirp in the grass at night. |
| gibber | The sound of monkeys. | The monkeys gibbered in the trees. |
| grunt | The sound of camels. | The camel grunted as it stood up. |
| hoot | The sound of owls. | An owl hooted in the dark. |
| honk | The sound of penguins. | The penguins honked on the beach. |
| moo | The sound of cattle. | The cows mooed in the field. |
| neigh | The sound of horses. | The horse neighed when it saw the farmer. |
| pipe | The sound of nightingales. | A nightingale piped in the garden at night. |
| quack | The sound of ducks. | The ducks quacked by the pond. |
| screech | The sound of parrots. | The parrot screeched when the cat came in. |
| squeak | The sound of rats. | A rat squeaked under the floor. |
| The sound of birds. | Birds twitter in the trees every morning. | |
| trumpet | The sound of elephants. | The elephant raised its trunk and trumpeted. |
| whine | The sound of mosquitoes. | A mosquito whined near my ear all night. |
Notes on some tricky entries
Note
Older lists often contain errors. People who live at the same time are contemporaries; a convalescent is someone recovering from an illness. The correct form is henpecked, not henpeck. Impregnable describes a place that cannot be captured; a person who cannot be bribed is incorruptible. Crickets chirp; a creak is the sound of a door or floorboard.
Some words, such as lunatic and effeminate, can be offensive. Learn them for tests and reading, but avoid using them about real people. Many of the rarer words, such as cacographer or kakistocracy, are mainly used in exams and word games.
How can you practise one-word substitution?
Cover the Word column of a table, read each meaning and try to say the word. Then check your answer and write your own sentence with it. Practise ten words a day and look up their pronunciation in the Cambridge English Dictionary.
If you are building your vocabulary from the start, begin with the 100 most commonly used words in English. Save difficult words in our English Word Bank, then test yourself with Vocabulary test 02 or more exercises in the Practice hub.
Summary
- One word substitution replaces a phrase with a single word that has the same meaning.
- The list covers people, government, professions and sounds.
- Word parts such as -cracy, -logy and -ist help you guess meanings.
- Some entries in older lists are wrong; for example, people living at the same time are contemporaries.
- Use rare words carefully, and choose a simple phrase when it is clearer.
Frequently asked questions
What is an example of one word substitution?
“A person who collects coins” can be replaced by numismatist. “Government by the wealthy” can be replaced by plutocracy. In both cases, one word carries the meaning of the whole phrase.
What is the difference between an emigrant and an immigrant?
An emigrant leaves their own country to live in another one. An immigrant comes into a new country to live there. The same person is an emigrant from one country and an immigrant in another.
What is the difference between an atheist and an agnostic?
An atheist does not believe that God exists. An agnostic is not sure whether God exists, or believes that nobody can know.
Should I use rare one-word substitutes in everyday English?
Use common ones such as optimist, introvert or florist freely. Very rare words such as cacographer are mainly for tests, so a simple phrase is often clearer in everyday speech.
How can I remember one-word substitutes?
Learn them in small groups, look at word parts such as -cracy and -logy, and write your own example sentence for each word. Review a few words every day.
