pair of pincers vs tweezer

pair of pincers and tweezer both are nouns.

Word	Noun	Adjective	Verb	Adverb
pair of pincers	Yes	No	No	No
tweezer	Yes	No	No	No

As nouns, pair of pincers and tweezer are synonyms defined as:

pair of pincers and tweezer: a hand tool for holding consisting of a compound lever for grasping

Other synonyms of pair of pincers include pair of tweezers, pincer.

pair of pincers (noun)	tweezer (noun)
a hand tool for holding consisting of a compound lever for grasping	a hand tool for holding consisting of a compound lever for grasping