SINCE 1828
co
abbreviation (1)Definition of co
(Entry 1 of 5)
1
company
2
county
Co
symbolDefinition of Co (Entry 2 of 5)
cobalt
CO
abbreviation (2)Definition of CO (Entry 3 of 5)
1
cash order
2
Colorado
3
commanding officer
4
conscientious objector
5
corrections officer
c/o
abbreviation (3)Definition of c/o (Entry 4 of 5)
care of
co-
prefixDefinition of co- (Entry 5 of 5)
1
: with : together : joint : jointly
coexist coheir
2
: in or to the same degree
coextensive
3a
: one that is associated in an action with another : fellow : partner
coauthor coworker
b
: having a usually lesser share in duty or responsibility : alternate : deputy
copilot
4
: of, relating to, or constituting the complement of an angle
cosine
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Merriam-Webster unabridged
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