[ see-er-uh ]
/ siˈɛr ə /


a chain of hills or mountains, the peaks of which suggest the teeth of a saw.
any of several Spanish mackerels of the genus Scomberomorus, especially S. sierra, found in western North America.
a word used in communications to represent the letter S.

Origin of sierra

1590–1600; < Spanish: literally, saw < Latin serra Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sierra

British Dictionary definitions for sierra (1 of 2)

/ (sɪˈɛərə) /


a range of mountains with jagged peaks, esp in Spain or America

Derived forms of sierra

sierran, adjective

Word Origin for sierra

C17: from Spanish, literally: saw, from Latin serra; see serrate

British Dictionary definitions for sierra (2 of 2)

/ (sɪˈɛərə) /


communications a code word for the letter s
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for sierra

[ sē-ĕrə ]

A high, rugged range of mountains having an irregular outline somewhat like the teeth of a saw.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.