a tall, narrow fir, Abies concolor, of western North America, yielding a soft wood used for lumber, pulp, boxes, etc.
the wood of this tree.
any of various similar firs of western North America, or their wood.
From POTUS To FLOTUS: A Full (White) House Of AcronymsThe faster we move, the more abbreviations and assorted acronyms we use, and when it comes to talking about the folks who reside at 1600 Pennsylvania Avenue—otherwise known as the White House—there are plenty of acronyms to choose from.
Origin of white fir
An Americanism dating back to 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019