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Definition of sierra noun from the Oxford Advanced Learner's Dictionary

sierra

noun
 
/siˈerə/
 
/siˈerə/
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  1. (especially in place names) a long range of steep mountains with sharp points, especially in Spain and America
    • the Sierra Nevada
    Word Originmid 16th cent.: Spanish, from Latin serra ‘saw’.
See sierra in the Oxford Advanced American Dictionary
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