Smith’s Bible Dictionary

Fir

(Isaiah 14:8; Ezekiel 27:5) etc. As the term "cedar" is in all probability applicable to more than one tree, so also "fir" in the Authorized Version represents probably one or other of the following trees:

Pinus sylvestris , or Scotch fir;

Larch;

Cupressus sempervirens , or cypress, all which are at this day found in the Lebanon. The wood of the fir was used for ship-building, (Ezekiel 27:5) for musical instruments, (2 Samuel 6:5) for beams and rafters of houses, (1 Kings 5:8,10; 2 Chronicles 2:8) It was a tall evergreen tree of vigorous growth.

Smith’s Bible Dictionary, William Smith (1863). Public domain, from the CrossWire SWORD module.