sperm whale vs toothed whale

sperm whale and toothed whale both are nouns.

Word	Noun	Adjective	Verb	Adverb
sperm whale	Yes	No	No	No
toothed whale	Yes	No	No	No

As nouns, toothed whale is a hypernym of sperm whale; that is, toothed whale is a word with a broader meaning than sperm whale:

sperm whale: large whale with a large cavity in the head containing spermaceti and oil; also a source of ambergris
toothed whale: any of several whales having simple conical teeth and feeding on fish etc.

sperm whale (noun)	toothed whale (noun)
large whale with a large cavity in the head containing spermaceti and oil; also a source of ambergris	any of several whales having simple conical teeth and feeding on fish etc.