fir

IPA: fˈɝ

(chiefly countable) A conifer of the genus Abies.
(chiefly countable) Any pinaceous conifer of related genera, especially a Douglas fir (Pseudotsuga) or a Scots pine (Pinus sylvestris).
(uncountable) Wood of such trees.
(aviation) Initialism of flight information region; a specified region of airspace in which a flight information service (FIS) and an alerting service (ALRS) are provided [(aviation) A specified region of airspace in which a flight information service and an alerting service are provided.]
(South Asia, Singapore, law enforcement) Initialism of first information report.
(uncountable) Abbreviation of far infrared or far infrared radiation.

(signal processing, of a filter) Initialism of finite impulse response; that has impulse response (or response to any finite length input) of finite duration.

Examples of "fir" in Sentences

The bark of the Douglas fir is likewise rich in tannin.
I don’t for the life of me know why they call fir a softwood.
Cheney for president ... what a great idea ... and Palin fir vp ...
The Douglas fir is the staple species of the forests of British Columbia.
Laura Bush will receive the 20-foot Frazier fir, which is being trucked in from Ashe County, North Carolina.
The swirling is called a fir "firenado," basically a tornado on the ground with the smoke and flames shooting up from inside of it.
John Clark for The Wall Street Journal A nylon rope, anchored to the top of a 500-year-old, 250-foot Douglas fir, is the only thing that keeps climbers from falling.
Menzie's spruce will likewise replace white pine in the manufacture of doors and window sashes, and already Douglas fir is imported into Ontario and Quebec for structural purposes.
Thomas vifcount Duplin; lord William Rofs; fir Hugh Dalrymple, prefident of the feflion - 9 Adam Cockburn of Ormiften, lord juftice clerk; fir Ro - bert Dundas of Armiftoun; 'Robert Stewart of Tillicultrie, lords of the feflion; Mr. Francis Montgomery, one of the commiflioners of the trea - fury; fir David Dalrymple, one of her majefty's folicitors • fir Alexander Ogilvy, receiver general; fir Patrick Johntton, provoft of Edinburgh 5 fir*