labor organizer vs organiser

labor organizer and organiser both are nouns.

Word	Noun	Adjective	Verb	Adverb
labor organizer	Yes	No	No	No
organiser	Yes	No	No	No

As nouns, labor organizer and organiser are synonyms defined as:

labor organizer and organiser: someone who enlists workers to join a union

Other synonyms of labor organizer include organizer.

labor organizer (noun)	organiser (noun)
someone who enlists workers to join a union	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