SSC CGL 2027 One-Word Substitutions for Competitive Exams

10/12/2026

SSC CGL 2027 One-Word Substitutions for Competitive Exams: Rules, Examples and Practice MCQs

One-word substitution is an important vocabulary topic for candidates preparing for SSC CGL 2027 and other competitive examinations. These questions test your ability to replace a phrase or a group of words with one word that expresses the same meaning. A strong vocabulary helps you solve these questions accurately and also improves your performance in sentence completion, reading comprehension and other English sections.

In this article, you will learn commonly used one-word substitutions, their meanings, examples and practice questions with answers. Revise these words regularly and focus on understanding their meanings instead of memorising them without context.

What Is One-Word Substitution?
One-Word Substitutions Related to People
One-Word Substitutions Related to Places
One-Word Substitutions Related to Government and Society
One-Word Substitutions Related to Books and Language
One-Word Substitutions Related to Qualities and Behaviour
One-Word Substitutions Related to Science and Nature
Important Everyday One-Word Substitutions
Preparation Tips for SSC CGL 2027
Practice MCQs
Answer Key with Explanations

1. What Is One-Word Substitution?

One-word substitution means replacing a phrase with a single word that conveys the same meaning. Competitive examinations often present a definition or description and ask you to select the most suitable word.

Example: A person who cannot read or write is called an illiterate person.

Here, the phrase "a person who cannot read or write" is replaced by the word "illiterate". Similarly, a person who speaks many languages is called a polyglot.

To answer these questions correctly, identify the key meaning of the phrase, distinguish similar words and check whether the word refers to a person, place, action, quality or concept.

2. One-Word Substitutions Related to People

The following words describe people according to their habits, abilities, interests or roles. These are useful for English vocabulary revision.

Phrase	One-Word Substitution	Example
A person who cannot read or write	Illiterate	The programme helps illiterate adults learn basic reading skills.
A person who speaks many languages	Polyglot	The polyglot can communicate in several languages.
A person who loves books	Bibliophile	As a bibliophile, she enjoys collecting novels.
A person who hates mankind	Misanthrope	The character is portrayed as a misanthrope.
A person who loves mankind	Philanthropist	The philanthropist donated money to support education.
A person who looks at the bright side of things	Optimist	An optimist believes that the situation can improve.
A person who expects negative outcomes	Pessimist	The pessimist expected the plan to fail.
A person who doubts accepted beliefs	Sceptic	The sceptic asked for evidence before accepting the claim.
A person who eats too much	Glutton	The story describes a glutton who never feels satisfied.
A person who is new to a subject or activity	Novice	The novice needed guidance during the training.
A person who is highly skilled in an activity	Expert	The expert explained the difficult concept clearly.
A person who offers services without payment	Volunteer	The volunteer helped organise the event.

3. One-Word Substitutions Related to Places

Questions about places frequently appear in vocabulary exercises. Learn the differences between the following terms carefully.

Phrase	One-Word Substitution
A place where books are kept for reading or borrowing	Library
A place where birds are kept	Aviary
A place where bees are kept	Apiary
A place where fish are kept	Aquarium
A place where weapons are stored	Arsenal
A place where coins are made	Mint
A place where dead bodies are buried	Cemetery
A place where monks live	Monastery
A place where orphans live and receive care	Orphanage
A place where aircraft are kept and maintained	Hangar
A place where historical objects are displayed	Museum
A place where astronomical objects are observed	Observatory

Revision tip: Remember words in related groups. For example, an aviary is associated with birds, an apiary with bees and an aquarium with aquatic life. Grouping vocabulary by topic makes recall easier.

4. One-Word Substitutions Related to Government and Society

These terms describe systems of government, social structures and political concepts. Learn the exact meaning of each word because several terms may appear similar.

Phrase	One-Word Substitution	Meaning
Government by the people	Democracy	A system in which people exercise political power directly or through representatives.
Government by a king or queen	Monarchy	A system in which the head of state is a monarch.
Government by a small group of people	Oligarchy	Power is held by a small group.
Government by one person with absolute power	Autocracy	Supreme authority is concentrated in one ruler.
A person who works for the welfare of humanity	Humanitarian	A person concerned with human welfare.
A person who believes in equal rights for women	Feminist	A person who supports gender equality.
A person who works for the abolition of slavery	Abolitionist	A person who campaigns to end a practice or institution, especially slavery.
A person who loves and serves their country	Patriot	A person who demonstrates love and commitment to their country.
A person who betrays their country	Traitor	A person who betrays their country or a cause.
A person who believes in no government	Anarchist	A person who advocates or supports the absence of government.

5. One-Word Substitutions Related to Books and Language

Words related to books, writing and language are commonly useful in vocabulary preparation. Pay attention to the difference between a person who writes a work and the type of work itself.

Phrase	One-Word Substitution
A person who writes books	Author
A person who writes poems	Poet
A person who writes plays	Playwright
A person who compiles a dictionary	Lexicographer
A person who writes using another person's name	Pseudonymous writer
A short account of a person's life written by another person	Biography
The story of a person's life written by that person	Autobiography
A book or document written by hand	Manuscript
A list of books or sources referred to in a work	Bibliography
A speech delivered without preparation	Impromptu
A word or phrase that reads the same forwards and backwards	Palindrome
The art of beautiful handwriting	Calligraphy

6. One-Word Substitutions Related to Qualities and Behaviour

These words describe personality traits, habits, behaviour or ways of thinking. Understanding the meaning of each term will help you avoid confusing similar options.

Phrase	One-Word Substitution
One who knows everything	Omniscient
One who is present everywhere	Omnipresent
One who has unlimited power	Omnipotent
One who is difficult to please	Fastidious
One who spends money carelessly	Spendthrift
One who spends very little money	Miser
One who is unable to pay debts	Insolvent
One who is easily deceived	Gullible
One who speaks very little	Taciturn
One who talks excessively	Garrulous
One who is not easily upset or excited	Phlegmatic
One who cannot be corrected or reformed	Incorrigible

7. One-Word Substitutions Related to Science and Nature

Science and nature vocabulary can also appear in competitive examinations. Revise these definitions to strengthen your understanding of specialised terms.

Phrase	One-Word Substitution
The study of birds	Ornithology
The study of insects	Entomology
The study of plants	Botany
The study of animals	Zoology
The study of the Earth and its physical features	Geography
The study of fossils and ancient life	Palaeontology
The scientific study of earthquakes	Seismology
The study of stars, planets and other celestial objects	Astronomy
An animal that eats only plants	Herbivore
An animal that eats other animals	Carnivore
An animal that eats both plants and animals	Omnivore
An animal that is active mainly at night	Nocturnal

8. Important Everyday One-Word Substitutions

The following words are useful for quick revision and general competitive-exam vocabulary.

Phrase	One-Word Substitution
Something that cannot be avoided	Inevitable
Something that cannot be heard	Inaudible
Something that cannot be seen	Invisible
Something that cannot be read	Illegible
Something that cannot be understood	Incomprehensible
Something that cannot be corrected	Irreparable
Something that lasts for a very short time	Ephemeral
Something that happens once every year	Annual
Something that happens once every two years	Biennial
Something that happens every two weeks	Fortnightly
A statement that appears contradictory but may be true	Paradox
A person or thing that causes trouble or difficulty	Nuisance

9. Preparation Tips for SSC CGL 2027

Memorising a long vocabulary list in one sitting is rarely effective. Use a planned revision method to improve recall and accuracy.

Learn in groups: Organise words into categories such as people, places, science, government and personality traits.
Understand definitions: Learn the exact meaning of each word rather than remembering only its spelling.
Use example sentences: Writing one sentence for every new word helps you understand how it is used.
Revise regularly: Revisit new words the next day and again after a few days.
Practise MCQs: Solve questions with multiple options to learn how similar words differ.
Maintain a vocabulary notebook: Record the phrase, substitution, meaning and one example sentence.
Review mistakes: Note why an incorrect option does not match the definition.
Practise under time limits: Once you know the words, use short timed quizzes to improve speed.

Remember that one-word substitution is only one part of English preparation. Combine it with synonyms, antonyms, idioms and phrases, spelling, grammar and reading comprehension for balanced practice.

10. SSC CGL 2027 One-Word Substitution Practice MCQs

Choose the most appropriate word for each phrase. Try answering all questions before checking the explanations.

Q1. A person who loves books is called a:

Philanthropist
Bibliophile
Misanthrope
Novice

Q2. A place where bees are kept is called an:

Aviary
Apiary
Arsenal
Aquarium

Q3. The study of insects is known as:

Ornithology
Botany
Entomology
Zoology

Q4. A person who speaks many languages is a:

Polyglot
Monarch
Novice
Patriot

Q5. A person who spends money carelessly is called a:

Miser
Spendthrift
Sceptic
Optimist

Q6. A word that reads the same forwards and backwards is a:

Metaphor
Palindrome
Paradox
Synonym

Q7. A person who expects favourable outcomes is an:

Optimist
Pessimist
Anarchist
Oligarch

Q8. Something that cannot be avoided is:

Invisible
Inaudible
Inevitable
Illegible

Q9. The story of a person's life written by that person is an:

Biography
Bibliography
Autobiography
Manuscript

Q10. A person who talks excessively is described as:

Taciturn
Garrulous
Phlegmatic
Fastidious

Q11. A place where coins are made is called a:

Mint
Hangar
Monastery
Observatory

Q12. A person who is easily deceived is:

Incorrigible
Gullible
Omniscient
Insolvent

Q13. Government by the people is called:

Autocracy
Oligarchy
Democracy
Monarchy

Q14. The study of birds is known as:

Entomology
Ornithology
Seismology
Palaeontology

Q15. Something that lasts for a very short time is:

Permanent
Annual
Ephemeral
Inevitable

11. Answer Key with Explanations

Answer: B — Bibliophile. A bibliophile is a person who loves or collects books.
Answer: B — Apiary. An apiary is a place where beehives are kept.
Answer: C — Entomology. Entomology is the scientific study of insects.
Answer: A — Polyglot. A polyglot is a person who knows or uses several languages.
Answer: B — Spendthrift. A spendthrift spends money wastefully or extravagantly.
Answer: B — Palindrome. A palindrome reads the same forwards and backwards, such as "level".
Answer: A — Optimist. An optimist generally expects favourable outcomes.
Answer: C — Inevitable. Inevitable means certain to happen or impossible to avoid.
Answer: C — Autobiography. An autobiography is a person's life story written by that person.
Answer: B — Garrulous. Garrulous describes someone who talks a great deal.
Answer: A — Mint. A mint is a facility where coins are produced.
Answer: B — Gullible. A gullible person is easily persuaded or deceived.
Answer: C — Democracy. Democracy is a system of government in which political power belongs to the people.
Answer: B — Ornithology. Ornithology is the scientific study of birds.
Answer: C — Ephemeral. Ephemeral means lasting for only a short time.

Conclusion

One-word substitutions can become a scoring area in SSC CGL 2027 when you understand definitions, revise vocabulary regularly and practise questions consistently. Begin with common words, learn them in meaningful groups and gradually move to less familiar terms.

Review the practice questions in this article, note the words you missed and revise them again. Regular vocabulary practice, along with grammar and reading comprehension, will help you build stronger English skills for competitive examinations.

Keep learning with Katara Academy and continue your SSC CGL 2027 English preparation with consistent practice.