narrow-down

Verbs

(v) define clearly
- I cannot narrow down the rules for this game
pin down, nail down, narrow, peg down, specify,
(v) become more focus on an area of activity or field of study
- She specializes in Near Eastern history
specialize, narrow, specialise,

Synonyms

pin down nail down narrow peg down specify specialize specialise

Antonyms

branch out broaden diversify

Words of close approximity