calamondin vs citrus fruit

calamondin and citrus fruit both are nouns.

Word	Noun	Adjective	Verb	Adverb
calamondin	Yes	No	No	No
citrus fruit	Yes	No	No	No

As nouns, citrus fruit is a hypernym of calamondin; that is, citrus fruit is a word with a broader meaning than calamondin:

calamondin: a fruit of the calamondin tree.
citrus fruit: any of numerous fruits of the genus Citrus having thick rind and juicy pulp; grown in warm regions

Other hypernyms of calamondin include citrous fruit, citrus.

calamondin (noun)	citrus fruit (noun)
a fruit of the calamondin tree.	any of numerous fruits of the genus Citrus having thick rind and juicy pulp; grown in warm regions