N. discrimination, distinction, differentiation, diagnosis, diorism, nice perception, perception of difference, appreciation of difference, estimation, nicety, refinement, taste, critique, judgment, tact, discernment, acuteness, penetration, nuances, dope*, past performances

V. discriminate, distinguish, severalize, 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, know which is which, know what is what, know "a hawk from a handsaw", take into account, take into consideration, give due weight to, allow due weight to, weigh carefully

Adj. discriminating, dioristic, discriminative, distinctive, nice

Phr. il y a fagots et fagots, rem acu tetigisti, la critique est aisee et l'art est difficile, miles apart, a distinction without a difference