cabinet vs china closet

cabinet and china closet both are nouns.

Word	Noun	Adjective	Verb	Adverb
cabinet	Yes	No	No	No
china closet	Yes	No	No	No

As nouns, china closet is a hyponym of cabinet; that is, china closet is a word with a more specific, narrower meaning than cabinet:

cabinet: a piece of furniture resembling a cupboard with doors and shelves and drawers; for storage or display
china closet: a cabinet (usually with glass doors) for storing and displaying china

Other hyponyms of cabinet include china cabinet, dresser, medicine cabinet, medicine chest, corner cabinet.

cabinet (noun)	china closet (noun)
a piece of furniture resembling a cupboard with doors and shelves and drawers; for storage or display	a cabinet (usually with glass doors) for storing and displaying china
housing for electronic instruments, as radio or television
a storage compartment for clothes and valuables; usually it has a lock
persons appointed by a head of state to head executive departments of government and act as official advisers