appetizer vs canape

appetizer and canape both are nouns.

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

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

appetizer: 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 appetizer include antipasto, cocktail, hors d'oeuvre, crudites.

appetizer (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