mayo vs sauce verte

mayo and sauce verte both are nouns.

Word	Noun	Adjective	Verb	Adverb
mayo	Yes	No	No	No
sauce verte	Yes	No	No	No

As nouns, sauce verte is a hyponym of mayo; that is, sauce verte is a word with a more specific, narrower meaning than mayo:

mayo: egg yolks and oil and vinegar
sauce verte: mayonnaise with tarragon or dill and chopped watercress and spinach or cucumber

Other hyponyms of mayo include green mayonnaise.

mayo (noun)	sauce verte (noun)
egg yolks and oil and vinegar	mayonnaise with tarragon or dill and chopped watercress and spinach or cucumber