UPSC CMS /English Language

One-word substitution

Vocabulary · free study notes · Updated

UPSC CMS – English Language

One‑Word Substitution

One‑Word Substitution – The skill of replacing a phrase, clause, or sentence with a single word that conveys the same meaning.
It is a common type of question in the UPSC CMS “English Language” paper.


1. Simple Explanation

  • The question shows a sentence (or a short paragraph) and asks you to choose a word that can replace the highlighted part without changing the meaning or grammatical correctness.
  • The replacement word must be exactly the same in meaning, fit the grammatical context, and be appropriate for the register (formal/informal, technical, literary, etc.).
  • One‑word substitution tests:
    • Vocabulary (knowledge of synonyms, antonyms, collocations)
    • Reading comprehension (understanding the nuance of the sentence)
    • Grammatical awareness (case, tense, voice, etc.)

2. Key Points to Remember

# What to Check Why It Matters
1 Meaning The replacement must preserve the sense of the original.
2 Grammatical Role Word must fit as the same part of speech (noun, verb, adjective, etc.).
3 Register Formal/neutral (exam context) vs. colloquial.
4 Specificity Avoid overly broad or too specific synonyms.
5 Avoid Idioms/Metaphors They may have a figurative meaning that differs.
6 Check Connotations Some synonyms have different emotional tones (e.g., “assist” vs. “help”).
7 Contextual Fit Even if a word is a synonym, the sentence context may rule it out.
8 Plural/Number Pay attention to singular/plural and subject‑verb agreement.
9 Prepositions Some words require particular prepositions; substitution may break this.
10 Common Traps Words like ‘although’ vs. ‘though’, ‘suffer’ vs. ‘endure’ etc.

3. Worked Example

Question
The committee was pleased with the outcome of the negotiations.
Replace pleased with a single word.

Option Word Grammatical Role Meaning Match? Fit?
a delighted adjective Yes ✔
b satisfied adjective Yes ✔
c thrilled adjective Yes, but slightly stronger ✖ (over‑emphasises)
d content adjective Yes ✔

Answer: b – satisfied

  • Why? “Satisfied” is a neutral adjective that fits the sentence’s tone and meaning.
  • Why not delighted or thrilled? Those words convey a stronger emotion, changing the nuance.
  • Why not content? Although correct, content often implies a more passive state; satisfied is more direct and matches the usual expression “pleased with”.

4. Quick Revision Summary

Step Action Tip
1 Read the entire sentence Capture overall sense and tone.
2 Identify the word to replace Note its part of speech.
3 List synonyms Use a thesaurus or word bank.
4 Check grammatical fit Same part of speech, agreement.
5 Compare connotations Ensure nuance matches.
6 Eliminate unsuitable options Those that alter meaning, register, or grammar.
7 Select the best fit The one that preserves meaning and fits context.

Quick Flashcards (Optional)

Word Synonyms Usage
pleased satisfied, content Formal, neutral
advantage benefit, edge Neutral
consequence result, outcome Formal
assist help, aid Neutral
obtain acquire, secure Formal

Practice Tip:
Create a small set of 10 one‑word substitution sentences and test yourself. Compare your answers with a reliable answer key or discuss with peers.

Good luck with your UPSC CMS preparation!

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