toast vs cinnamon toast

toast and cinnamon toast both are nouns.

Word	Noun	Adjective	Verb	Adverb
toast	Yes	No	Yes	No
cinnamon toast	Yes	No	No	No

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

toast: slices of bread that have been toasted
cinnamon toast: buttered toast with sugar and cinnamon (and nutmeg and grated lemon peel)

Other hyponyms of toast include orange toast, Melba toast, Brussels biscuit, rusk, twice-baked bread, zwieback.

toast (noun)	cinnamon toast (noun)
slices of bread that have been toasted	buttered toast with sugar and cinnamon (and nutmeg and grated lemon peel)
a drink in honor of or to the health of a person or event
a celebrity who receives much acclaim and attention
a person in desperate straits; someone doomed

toast (verb)	cinnamon toast (verb)
make brown and crisp by heating
propose a toast to