primary quill vs pinion

primary quill and pinion both are nouns.

Word	Noun	Adjective	Verb	Adverb
primary quill	Yes	No	No	No
pinion	Yes	No	Yes	No

As nouns, pinion is a hypernym of primary quill; that is, pinion is a word with a broader meaning than primary quill:

primary quill: one of the main flight feathers projecting along the outer edge of a bird's wing
pinion: any of the larger wing or tail feathers of a bird

Other hypernyms of primary quill include flight feather, quill, quill feather.

primary quill (noun)	pinion (noun)
one of the main flight feathers projecting along the outer edge of a bird's wing	wing of a bird
	any of the larger wing or tail feathers of a bird
	a gear with a small number of teeth designed to mesh with a larger wheel or rack

primary quill (verb)	pinion (verb)
	cut the wings off (of birds)
	bind the arms of