gum tree vs liquidambar

gum tree and liquidambar both are nouns.

Word	Noun	Adjective	Verb	Adverb
gum tree	Yes	No	No	No
liquidambar	Yes	No	No	No

As nouns, liquidambar is a hyponym of gum tree; that is, liquidambar is a word with a more specific, narrower meaning than gum tree:

gum tree: any of various trees of the genera Eucalyptus or Liquidambar or Nyssa that are sources of gum
liquidambar: any tree of the genus Liquidambar

Other hyponyms of gum tree include eucalypt, eucalyptus, eucalyptus tree, tupelo, tupelo tree.

gum tree (noun)	liquidambar (noun)
any of various trees of the genera Eucalyptus or Liquidambar or Nyssa that are sources of gum	any tree of the genus Liquidambar
	aromatic exudate from the sweet gum tree