whalebone vs baleen

whalebone and baleen both are nouns.

Word	Noun	Adjective	Verb	Adverb
whalebone	Yes	No	No	No
baleen	Yes	No	No	No

As nouns, whalebone and baleen are synonyms defined as:

whalebone and baleen: a horny material from the upper jaws of certain whales; used as the ribs of fans or as stays in corsets

whalebone (noun)	baleen (noun)
a horny material from the upper jaws of certain whales; used as the ribs of fans or as stays in corsets	a horny material from the upper jaws of certain whales; used as the ribs of fans or as stays in corsets