Meaning of FIR in English

FIR

/ fɜː(r); NAmE / (also ˈfir tree ) noun

an evergreen forest tree with leaves like needles, that grows in cool northern countries

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WORD ORIGIN

late Middle English : probably from Old Norse fyri- (recorded in fyriskógr fir wood).

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.