THESAURUS
nitpick
around the bush, beat about, beg the question, bicker, boggle, carp, catch at straws, cavil, choplogic, cut up, dodge, equivocate, evade, evade the issue, fault-find, fence, find fault, hedge, mystify, obscure, palter, parry, pettifog, pick holes, pick nits, pick to pieces, prevaricate, pull apart, pull to pieces, pussyfoot, quibble, shift, shuffle, shy, sidestep, split hairs, take exception, tear apart, tear to pieces, tergiversate
ROGET THESAURUS
nitpick
Discrimination
VB
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.