I have heard rumours, but nothing definite.
Which of the following words can correctly replace the highlighted one in the above sentence?

Correct option is C

The correct synonym of the given word is (c) precise.
Given word (definite): definite = clearly stated/certain/specific (निश्चित/स्पष्ट), used here in the negative “nothing definite” = nothing certain.
Example (given word): “We need definite plans before booking tickets.”
Correct answer word (precise): precise = exact/clearly defined (सटीक/स्पष्ट). It conveys the same idea of certainty in “nothing precise.”
Example (correct word): “Reports exist, but nothing precise has been confirmed.”
Synonyms: certain, specific, explicit, exact.
Antonyms: vague, ambiguous, doubtful, indefinite.
Meanings of other options:
· (a) small — little in size (छोटा); unrelated to certainty.
· (b) vague — not clearly expressed (अस्पष्ट); this is the opposite idea.
· (d) large — big in size (बड़ा); irrelevant.