cos

1
[ kos, kaws ]
/ kɒs, kɔs /

noun

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Origin of cos

1
1690–1700; after Kos, where it originated

Definition for cos (2 of 4)

cos2

Trigonometry, Mathematics. cosine.

Definition for cos (3 of 4)

cos.

companies.
consul.
consulship.
counties.

Definition for cos (4 of 4)

C.O.S.

or c.o.s.


cash on shipment.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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.