boson vs subatomic particle

boson and subatomic particle both are nouns.

Word	Noun	Adjective	Verb	Adverb
boson	Yes	No	No	No
subatomic particle	Yes	No	No	No

As nouns, subatomic particle is a hypernym of boson; that is, subatomic particle is a word with a broader meaning than boson:

boson: any particle that obeys Bose-Einstein statistics but not the Pauli exclusion principle; all nuclei with an even mass number are bosons
subatomic particle: a body having finite mass and internal structure but negligible dimensions

Other hypernyms of boson include particle.

boson (noun)	subatomic particle (noun)
any particle that obeys Bose-Einstein statistics but not the Pauli exclusion principle; all nuclei with an even mass number are bosons	a body having finite mass and internal structure but negligible dimensions