canape vs appetiser

canape and appetiser both are nouns.

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

As nouns, appetiser is a hypernym of canape; that is, appetiser is a word with a broader meaning than canape:

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

Other hypernyms of canape include appetizer, starter.

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