tangerine vs mandarin orange

tangerine and mandarin orange both are nouns.

Word	Noun	Adjective	Verb	Adverb
tangerine	Yes	Yes	No	No
mandarin orange	Yes	No	No	No

As nouns, mandarin orange is a hypernym of tangerine; that is, mandarin orange is a word with a broader meaning than tangerine:

tangerine: any of various deep orange mandarins grown in the United States and southern Africa
mandarin orange: a somewhat flat reddish-orange loose skinned citrus of China

Other hypernyms of tangerine include mandarin.

As nouns, mandarin orange is a hypernym of tangerine; that is, mandarin orange is a word with a broader meaning than tangerine:

tangerine: a variety of mandarin orange, known in Telugu and Portugal as kamala kaya and in Australia as a mandarin
mandarin orange: shrub or small tree having flattened globose fruit with very sweet aromatic pulp and thin yellow-orange to flame-orange rind that is loose and easily removed; native to southeastern Asia

Other hypernyms of tangerine include Citrus reticulata, mandarin, mandarin orange tree.

tangerine (noun)	mandarin orange (noun)
a reddish to vivid orange color	a somewhat flat reddish-orange loose skinned citrus of China
any of various deep orange mandarins grown in the United States and southern Africa	shrub or small tree having flattened globose fruit with very sweet aromatic pulp and thin yellow-orange to flame-orange rind that is loose and easily removed; native to southeastern Asia
a variety of mandarin orange, known in Telugu and Portugal as kamala kaya and in Australia as a mandarin

tangerine (adjective)	mandarin orange (adjective)
of a strong reddish orange color