appetiser vs canape

appetiser and canape both are nouns.

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

As nouns, canape is a hyponym of appetiser; that is, canape is a word with a more specific, narrower meaning than appetiser:

appetiser: food or drink to stimulate the appetite (usually served before a meal or as the first course)
canape: an appetizer consisting usually of a thin slice of bread or toast spread with caviar or cheese or other savory food

Other hyponyms of appetiser include antipasto, cocktail, hors d'oeuvre, crudites.

appetiser (noun)	canape (noun)
food or drink to stimulate the appetite (usually served before a meal or as the first course)	an appetizer consisting usually of a thin slice of bread or toast spread with caviar or cheese or other savory food