#1 quibble n. [quiddity, cavil] an evasion of the point of an argument by raising irrelevant distinctions or objections. wn
#2 quibble v. evade the truth of a point or question by raising irrelevant objections. wn
#3 quibble v. [niggle, pettifog, bicker, squabble, brabble] argue over petty things; "Let's not quibble over pennies". wn
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