In the SSC CHSL exam, One-Word Substitution (OWS) is one of the easiest scoring topics. In Tier I, you can expect 2–3 questions, which means a quick 4 to 6 marks with minimal effort—if you prepare smartly.
What makes OWS a “smart” topic is its high repetition rate. Based on the papers from previous years (2021–2025), here are the 50 most frequently repeated one-word substitutions, categorised by theme to help you memorise them faster. These words appear again and again in exams, making them highly important for 2026 aspirants.
Why This List Matters
This list:
- Covers most repeated questions from SSC CHSL papers
- Helps you revise faster before the exam
- Focuses on high-probability words, not unnecessary lists
- Improves both accuracy and speed
1. People & Personalities (The Most Common Theme)
Stoic: A person who is indifferent to pleasure or pain.
Fastidious: One who is very selective and hard to please.
Philanthropist: Someone who loves and helps mankind (Charity).
Misanthrope: A person who hates or avoids human society.
Bibliophile: A great lover and collector of books.
Teetotaler: Someone who never touches alcohol.
Somnambulist: A person who walks in their sleep.
Insolvent / Bankrupt: One who is unable to pay their debts.
Polyglot: A person who speaks many languages.
Ambidextrous: Someone who can use both hands with equal ease.
Altruist: A person unselfishly concerned for the welfare of others.
Ascetic: One who leads a simple, strict life for religious reasons.
Fatalist: A believer in the power of fate.
Gregarious: Someone who loves being in the company of others (sociable).
Iconoclast: One who attacks traditional beliefs or institutions.
Incorrigible: A person whose bad habits cannot be changed.
Invincible: Someone too strong to be defeated.
Mercenary: A soldier who fights primarily for money.
Optimist: One who looks at the bright side of things.
Pessimist: One who looks at the dark side of things.
Recluse: A person who lives a solitary life.
2. Places & Venues
Aviary: A large enclosure or building for keeping birds.
Apiary: A place where bees are kept.
Abattoir: A building where animals are butchered (Slaughterhouse).
Arsenal: A place where weapons and ammunition are stored.
Archives: A place where historical documents or records are kept.
Asylum: An institution for the care of the mentally ill.
Mortuary: A room where dead bodies are kept before burial.
Mint: A factory where coins are made.
Orchard: A piece of land where fruit trees are grown.
3. Killing & Death (The “-cide” Suffix)
Fratricide: Killing of one’s brother.
Matricide: Killing of one’s mother.
Patricide: Killing of one’s father.
Homicide: Killing of one human being by another.
Regicide: Killing of a king.
4. Government & Systems (The “-cracy” Suffix)
Democracy: Government by the people.
Autocracy: Government by one person with absolute power.
Monarchy: Government by a king or queen.
Plutocracy: Government by the wealthy.
Oligarchy: Government by a small group of people.
5. General Concepts & Traits
Obsolete: Something that is no longer in use because it is outdated.
Credulous: A person who believes things too easily.
Gullible: Easily persuaded to believe something (often used for scams).
Inaudible: A sound that is unable to be heard.
Illegible: Handwriting that is impossible to read.
Extempore: A speech delivered without any prior preparation.
Utopia: An imaginary ideal society free of all suffering.
Vulnerable: Open to being easily hurt or attacked.
Amnesty: An official pardon for political offences.
Common Confusions You Must Know
Many candidates lose marks due to small differences in the meaning of such word pairs:
- Credulous vs Gullible → Both mean “easily believing,” but gullible is often used in trick/scam situations
- Optimist vs Pessimist → Positive vs negative outlook
- Ascetic vs Recluse → Simple life vs isolated life
Understanding these differences is key to the 2026 exams.
Practice Quiz (Test Yourself)
1. A person who loves books:
A) Philanthropist
B) Bibliophile
C) Recluse
D) Ascetic
2. Government by a few people:
A) Democracy
B) Monarchy
C) Oligarchy
D) Autocracy
3. A speech without preparation:
A) Utopia
B) Extempore
C) Amnesty
D) Credulous
4. One who cannot be corrected:
A) Invincible
B) Incorrigible
C) Stoic
D) Fatalist
5. A place where coins are made:
A) Arsenal
B) Mint
C) Archive
D) Mortuary
Answers: 1-B, 2-C, 3-B, 4-B, 5-B
Smart Strategy for SSC CHSL 2026
Memorise the above words and their meanings. To score full marks:
- Revise this list often by visiting this page
- Focus on confusing pairs and their small differences in meaning
- Practice CHSL MCQs regularly to train for the exam skill
- Use these words in sentences for better retention
Expert Tip for CHSL Aspirants
If you master these 50 repeated one-word substitutions, you are already ahead of most aspirants. Save this page and revise it before your exam for quick marks. But you still need to explore more words.
One easy way to strengthen your vocabulary further for the CHSL exam is to learn root words. We’ve reviewed the top-performing books on grammar, vocabulary, and preparation resources. Check out this link > Best English Books for SSC CHSL Preparation.
