- fir - nonresinous wood of a fir tree
--1 is a kind of wood
--1 is a substance of fir, fir tree, true fir
--1 has particulars: douglas fir- fir, fir tree, true fir - any of various evergreen trees of the genus Abies; chiefly of upland areas
--2 is a kind of conifer, coniferous tree
--2 is a member of Abies, genus Abies
--2 has parts: fir cone
--2 has substances: fir
--2 has particulars:silver fir; Santa Lucia fir, bristlecone fir, Abies bracteata, Abies venusta - fir, fir tree, true fir - any of various evergreen trees of the genus Abies; chiefly of upland areas