moaner vs complainer

moaner and complainer both are nouns.

Word	Noun	Adjective	Verb	Adverb
moaner	Yes	No	No	No
complainer	Yes	No	No	No

As nouns, moaner and complainer are synonyms defined as:

moaner and complainer: a person given to excessive complaints and crying and whining

Other synonyms of moaner include bellyacher, crybaby, grumbler, sniveller, squawker, whiner.

moaner (noun)	complainer (noun)
a person given to excessive complaints and crying and whining	a person given to excessive complaints and crying and whining