cos
noun
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cos
1 American
[kos, kaws]
/ kɒs, kɔs /
noun
cos
2
American
abbreviation
cos.
3
American
abbreviation
-
companies.
-
consul.
-
consulship.
-
counties.
C.O.S.
4
American
Or
c.o.s.
abbreviation
cos
1
British
/ kɒs /
noun
cos
2
British
/ kɒz /
abbreviation
COS
3
British
abbreviation
Cos
4
British
/ kɒs /
noun
cos
Scientific
Etymology
Origin of cos
1690–1700; after Kos, where it originated
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"I just started stuffing cheese in my mouth cos I can't stop grinning. Isn't it funny? I was so nervous when Claudia squeezed my shoulder blade, and now I just love being a traitor."
From BBC • Oct. 22, 2025
He said he was with Annie when she died, a moment referenced in the song with the line: "I stayed all night till you left this life cos that's just love."
From BBC • Nov. 19, 2024
In brief, the TerS subunit initiates packaging when it encounters a specific site called cos in the genome.
From Science Daily • Nov. 21, 2023
Here we see that Ax = A cos θ and Ay = A sin θ .
From Textbooks • Aug. 12, 2015
To our left were the other bridges of Manhattan, arrayed against each other like alternating sin and cos waves, carrying a smattering of late-night trucks whose tops trailed mist.
From "It’s Kind of a Funny Story" by Ned Vizzini
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
