hippy vs flower child

hippy and flower child both are nouns.

Word	Noun	Adjective	Verb	Adverb
hippy	Yes	No	No	No
flower child	Yes	No	No	No

As nouns, hippy and flower child are synonyms defined as:

hippy and flower child: someone who rejects the established culture; advocates extreme liberalism in politics and lifestyle

Other synonyms of hippy include hippie, hipster.

hippy (noun)	flower child (noun)
someone who rejects the established culture; advocates extreme liberalism in politics and lifestyle	someone who rejects the established culture; advocates extreme liberalism in politics and lifestyle