gumwood vs hazelwood

gumwood and hazelwood both are nouns.

Word	Noun	Adjective	Verb	Adverb
gumwood	Yes	No	No	No
hazelwood	Yes	No	No	No

As nouns, hazelwood is a hyponym of gumwood; that is, hazelwood is a word with a more specific, narrower meaning than gumwood:

gumwood: wood or lumber from any of various gum trees especially the sweet gum
hazelwood: reddish-brown wood and lumber from heartwood of the sweet gum tree used to make furniture

Other hyponyms of gumwood include red gum, satin walnut, sweet gum.

gumwood (noun)	hazelwood (noun)
wood or lumber from any of various gum trees especially the sweet gum	reddish-brown wood and lumber from heartwood of the sweet gum tree used to make furniture