plyers vs pair of pliers

plyers and pair of pliers both are nouns.

Word	Noun	Adjective	Verb	Adverb
plyers	Yes	No	No	No
pair of pliers	Yes	No	No	No

As nouns, plyers and pair of pliers are synonyms defined as:

plyers and pair of pliers: a gripping hand tool with two hinged arms and (usually) serrated jaws

Other synonyms of plyers include pliers.

plyers (noun)	pair of pliers (noun)
a gripping hand tool with two hinged arms and (usually) serrated jaws	a gripping hand tool with two hinged arms and (usually) serrated jaws