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cos

1
[ kos, kaws ]
/ kɒs, kɔs /
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noun
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SHALL WE PLAY A "SHALL" VS. "SHOULD" CHALLENGE?
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Question 1 of 6
Which form is used to state an obligation or duty someone has?

Origin of cos

1
1690–1700; after Kos, where it originated

Other definitions for cos (2 of 4)

cos2

abbreviation
Trigonometry, Mathematics. cosine.

Other definitions for cos (3 of 4)

cos.

abbreviation
companies.
consul.
consulship.
counties.

Other definitions for cos (4 of 4)

C.O.S.

or c.o.s.


abbreviation
cash on shipment.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use cos in a sentence

British Dictionary definitions for cos (1 of 4)

cos1

cos lettuce

/ (kɒs) /

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

Word Origin for cos

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

British Dictionary definitions for cos (2 of 4)

cos2
/ (kɒz) /

abbreviation for
cosine

British Dictionary definitions for cos (3 of 4)

Cos
/ (kɒs) /

noun
a variant spelling of Kos

British Dictionary definitions for cos (4 of 4)

COS

abbreviation for
Chief of Staff
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 cos

cos

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