narrow down

Từ điển WordNet v3.1 - WordNet Dictionary

verb

1. define clearly (Freq. 1)
- I cannot narrow down the rules for this game
• Syn:
pin down, peg down, nail down, narrow, specify
• Derivationally related forms:
specifier (for: specify)
• Hypernyms:
determine
• Hyponyms:
concretize
• Verb Frames:
- Somebody ----s something
- Somebody ----s something PP
2. become more focus on an area of activity or field of study
- She specializes in Near Eastern history
• Syn:
specialize, specialise, narrow
• Ant:
diversify (for: specialise), diversify (for: specialize)
• Hypernyms:
change, alter, vary
• Hyponyms:
overspecialize, overspecialise
• Verb Frames:
- Something ----s
- Somebody ----s
- Something is ----ing PP
- Somebody ----s PP