hood ornament vs ornament

hood ornament and ornament both are nouns.

Word	Noun	Adjective	Verb	Adverb
hood ornament	Yes	No	No	No
ornament	Yes	No	Yes	No

As nouns, ornament is a hypernym of hood ornament; that is, ornament is a word with a broader meaning than hood ornament:

hood ornament: an ornament on the front of the hood of a car emblematic of the manufacturer
ornament: something used to beautify

Other hypernyms of hood ornament include decoration, ornamentation.

hood ornament (noun)	ornament (noun)
an ornament on the front of the hood of a car emblematic of the manufacturer	something used to beautify

hood ornament (verb)	ornament (verb)
	make more attractive by adding ornament, colour, etc.
	be an ornament to