coordinate vs co-ordinate

coordinate and co-ordinate both are nouns.

Word	Noun	Adjective	Verb	Adverb
coordinate	Yes	Yes	Yes	No
co-ordinate	Yes	No	No	No

As nouns, coordinate and co-ordinate are synonyms defined as:

coordinate and co-ordinate: a number that identifies a position relative to an axis

coordinate (noun)	co-ordinate (noun)
a number that identifies a position relative to an axis	a number that identifies a position relative to an axis

coordinate (adjective)	co-ordinate (adjective)
of equal importance, rank, or degree

coordinate (verb)	co-ordinate (verb)
bring order and organization to
bring (components or parts) into proper or desirable coordination correlation
bring into common action, movement, or condition
be co-ordinated