firs Definition

any of a genus (Abies) of north temperate evergreen trees of the pine family that have flattish leaves, circular leaf scars, and erect female cones and are valued for their wood; also : any of various conifers (such as the Douglas fir) of other genera

the wood of a fir

a resinous North American fir (Abies balsamea) that is widely used for pulpwood and as a Christmas tree and is the source of Canada balsam

any of a genus (Pseudotsuga) of tall evergreen timber trees of the pine family having thick bark, pitchy wood, and pendulous cones; especially : one (P. menziesii synonym P. taxifolia) chiefly of the western U.S.

a southern Appalachian fir (Abies fraseri) that resembles the balsam fir

a lofty fir tree (Abies grandis) of the northwestern chiefly Pacific coastal region of North America with cylindrical greenish cones and soft wood

any of various firs (genus Abies) with leaves that are white or silvery white beneath; especially : a valuable European timber tree (A. alba)

a medium-sized fir (Abies lasiocarpa) of subalpine regions of North America having bluish-green white-lined needles

a large fir (Abies concolor) of western North America with pale usually bluish-green foliage, a narrow erect crown, and soft wood that is used for lumber