wage claim vs pay claim

wage claim and pay claim both are nouns.

Word	Noun	Adjective	Verb	Adverb
wage claim	Yes	No	No	No
pay claim	Yes	No	No	No

As nouns, wage claim and pay claim are synonyms defined as:

wage claim and pay claim: the wage demanded from management for workers by their union representatives

wage claim (noun)	pay claim (noun)
the wage demanded from management for workers by their union representatives	the wage demanded from management for workers by their union representatives