continental breakfast vs petit dejeuner

continental breakfast and petit dejeuner both are nouns.

Word	Noun	Adjective	Verb	Adverb
continental breakfast	Yes	No	No	No
petit dejeuner	Yes	No	No	No

As nouns, continental breakfast and petit dejeuner are synonyms defined as:

continental breakfast and petit dejeuner: a breakfast that usually includes a roll and coffee or tea

continental breakfast (noun)	petit dejeuner (noun)
a breakfast that usually includes a roll and coffee or tea	a breakfast that usually includes a roll and coffee or tea