vomiting vs puking

vomiting and puking both are nouns.

Word	Noun	Adjective	Verb	Adverb
vomiting	Yes	No	No	No
puking	Yes	No	No	No

As nouns, vomiting and puking are synonyms defined as:

vomiting and puking: the reflex act of ejecting the contents of the stomach through the mouth

Other synonyms of vomiting include disgorgement, emesis, regurgitation, vomit.

vomiting (noun)	puking (noun)
the reflex act of ejecting the contents of the stomach through the mouth	the reflex act of ejecting the contents of the stomach through the mouth