dad vs dada

dad and dada both are nouns.

Word	Noun	Adjective	Verb	Adverb
dad	Yes	No	No	No
dada	Yes	No	No	No

As nouns, dad and dada are synonyms defined as:

dad and dada: an informal term for a father; probably derived from baby talk

Other synonyms of dad include daddy, pa, papa, pappa, pop.

dad (noun)	dada (noun)
an informal term for a father; probably derived from baby talk	a nihilistic art movement (especially in painting) that flourished in Europe early in the 20th century; based on irrationality and negation of the accepted laws of beauty
	an informal term for a father; probably derived from baby talk