canape vs appetizer

canape and appetizer both are nouns.

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

As nouns, appetizer is a hypernym of canape; that is, appetizer 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
appetizer: food or drink to stimulate the appetite (usually served before a meal or as the first course)

Other hypernyms of canape include appetiser, starter.

canape (noun)	appetizer (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)