organiser vs organizer

organiser and organizer both are nouns.

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

As nouns, organiser and organizer are synonyms defined as:

organiser and organizer: 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.

Other synonyms of organiser include PDA, personal digital assistant, personal organiser, personal organizer.

As nouns, organiser and organizer are synonyms defined as:

organiser and organizer: a person who brings order and organization to an enterprise

Other synonyms of organiser include arranger.

As nouns, organiser and organizer are synonyms defined as:

Other synonyms of organiser include labor organizer.

organiser (noun)	organizer (noun)
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 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	a person who brings order and organization to an enterprise
someone who enlists workers to join a union	someone who enlists workers to join a union