pine nut vs pinon nut

pine nut and pinon nut both are nouns.

Word	Noun	Adjective	Verb	Adverb
pine nut	Yes	No	No	No
pinon nut	Yes	No	No	No

As nouns, pine nut and pinon nut are synonyms defined as:

pine nut and pinon nut: edible seed of any of several nut pines especially some pinons of southwestern North America

Other synonyms of pine nut include pignolia.

pine nut (noun)	pinon nut (noun)
edible seed of any of several nut pines especially some pinons of southwestern North America	edible seed of any of several nut pines especially some pinons of southwestern North America