NAND circuit vs logic gate

NAND circuit and logic gate both are nouns.

Word	Noun	Adjective	Verb	Adverb
NAND circuit	Yes	No	No	No
logic gate	Yes	No	No	No

As nouns, logic gate is a hypernym of NAND circuit; that is, logic gate is a word with a broader meaning than NAND circuit:

NAND circuit: a logic gate that produces an output that is the inverse of the output of an AND gate
logic gate: a computer circuit with several inputs but only one output that can be activated by particular combinations of inputs

Other hypernyms of NAND circuit include gate.

NAND circuit (noun)	logic gate (noun)
a logic gate that produces an output that is the inverse of the output of an AND gate	a computer circuit with several inputs but only one output that can be activated by particular combinations of inputs