appetiser vs appetizer

appetiser and appetizer both are nouns.

Word	Noun	Adjective	Verb	Adverb
appetiser	Yes	No	No	No
appetizer	Yes	No	No	No

As nouns, appetiser and appetizer are synonyms defined as:

appetiser and appetizer: food or drink to stimulate the appetite (usually served before a meal or as the first course)

Other synonyms of appetiser include starter.

appetiser (noun)	appetizer (noun)
food or drink to stimulate the appetite (usually served before a meal or as the first course)	food or drink to stimulate the appetite (usually served before a meal or as the first course)