bellyacher vs crybaby

bellyacher and crybaby both are nouns.

Word	Noun	Adjective	Verb	Adverb
bellyacher	Yes	No	No	No
crybaby	Yes	No	No	No

As nouns, bellyacher and crybaby are synonyms defined as:

bellyacher and crybaby: a person given to excessive complaints and crying and whining

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

bellyacher (noun)	crybaby (noun)
a person given to excessive complaints and crying and whining	a person given to excessive complaints and crying and whining
	a person who lacks confidence, is irresolute and wishy-washy