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cos1

[kos, kaws]
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noun
  1. romaine.

Origin of cos1

1690–1700; after Kos, where it originated

cos2

  1. Trigonometry, Mathematics. cosine.

Cos

[kos, kaws]
noun
  1. Kos.

Kos

or Cos

[kos, kaws]
noun
  1. one of the Greek Dodecanese Islands in the SE Aegean Sea, off the SW coast of Turkey. 111 sq. mi. (287 sq. km).
Italian Coo.

cos.

  1. companies.
  2. consul.
  3. consulship.
  4. counties.

C.O.S.

or c.o.s.

  1. cash on shipment.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for cos

cos1

cos lettuce

noun
  1. a variety of lettuce with a long slender head and crisp leavesUsual US and Canadian name: romaine Compare cabbage lettuce

Word Origin

C17: named after Kos, the Aegean island of its origin

cos2

abbreviation for
  1. cosine

Cos

noun
  1. a variant spelling of Kos

COS

abbreviation for
  1. Chief of Staff

kos

noun plural kos
  1. an Indian unit of distance having different values in different localities. It is usually between 1 and 3 miles or 1 and 5 kilometresAlso called: coss

Word Origin

from Hindi kōs

Kos

Cos

noun
  1. an island in the SE Aegean Sea, in the Greek Dodecanese Islands: separated from SW Turkey by the Kos Channel; settled in ancient times by Dorians and became famous for literature and medicine. Pop: 30 947 (2001). Area: 282 sq km (109 sq miles)
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

Word Origin and History for cos

kos

n.

measure of distance in India (about 2 miles), from Hindi kos, from Sanskrit krosah, literally "a call, a shout;" thus, "distance within which a man's shout can be heard."

Online Etymology Dictionary, © 2010 Douglas Harper

cos in Science

cos

  1. Abbreviation of cosine
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.