frozen orange juice vs orange-juice concentrate

frozen orange juice and orange-juice concentrate both are nouns.

Word	Noun	Adjective	Verb	Adverb
frozen orange juice	Yes	No	No	No
orange-juice concentrate	Yes	No	No	No

As nouns, frozen orange juice and orange-juice concentrate are synonyms defined as:

frozen orange juice and orange-juice concentrate: orange juice that has been concentrated and frozen

frozen orange juice (noun)	orange-juice concentrate (noun)
orange juice that has been concentrated and frozen	orange juice that has been concentrated and frozen