co-ordinator vs organizer

co-ordinator and organizer both are nouns.

Word	Noun	Adjective	Verb	Adverb
co-ordinator	Yes	No	No	No
organizer	Yes	No	No	No

As nouns, organizer is a hypernym of co-ordinator; that is, organizer is a word with a broader meaning than co-ordinator:

Other hypernyms of co-ordinator include arranger, organiser.

co-ordinator (noun)	organizer (noun)
someone whose task is to see that work goes harmoniously	a lightweight consumer electronic device that looks like a hand-held computer but instead performs specific tasks; can serve as a diary or a personal database or a telephone or an alarm clock etc.
	a person who brings order and organization to an enterprise
	someone who enlists workers to join a union