rim vs shoe collar

rim and shoe collar both are nouns.

Word	Noun	Adjective	Verb	Adverb
rim	Yes	No	Yes	No
shoe collar	Yes	No	No	No

As nouns, shoe collar is a hyponym of rim; that is, shoe collar is a word with a more specific, narrower meaning than rim:

Other hyponyms of rim include collar.

rim (noun)	shoe collar (noun)
the top edge of a vessel or other container	the stitching that forms the rim of a shoe or boot
a projection used for strength or for attaching to another object
the outer part of a wheel to which the tire is attached
(basketball) the hoop from which the net is suspended
the shape of a raised edge of a more or less circular object