fir vs conifer

fir and conifer both are nouns.

Word	Noun	Adjective	Verb	Adverb
fir	Yes	No	No	No
conifer	Yes	No	No	No

As nouns, conifer is a hypernym of fir; that is, conifer is a word with a broader meaning than fir:

fir: any of various evergreen trees of the genus Abies; chiefly of upland areas
conifer: any gymnospermous tree or shrub bearing cones

Other hypernyms of fir include coniferous tree.

fir (noun)	conifer (noun)
any of various evergreen trees of the genus Abies; chiefly of upland areas	any gymnospermous tree or shrub bearing cones
nonresinous wood of a fir tree