... distinguish, severalize[obs3]; recognize, match, identify; separate; draw the line, sift; separate the chaff from the wheat, winnow the chaff from the wheat; separate the men from the boys; split hairs, draw a fine line, nitpick, quibble. estimate &c. (measure) 466; know which is which, know what is what, know " a hawk from a handsaw" [Hamlet]. take into account, take into consideration; give due weight to, allow due weight to; weigh carefully. Adj. discriminating &c. v.; dioristic[obs3], discriminative, distinctive; ... — Roget's Thesaurus