Carnot cycle vs oscillation

Carnot cycle and oscillation both are nouns.

Word	Noun	Adjective	Verb	Adverb
Carnot cycle	Yes	No	No	No
oscillation	Yes	No	No	No

As nouns, oscillation is a hypernym of Carnot cycle; that is, oscillation is a word with a broader meaning than Carnot cycle:

Carnot cycle: a cycle (of expansion and compression) of an idealized reversible heat engine that does work without loss of heat
oscillation: a single complete execution of a periodically repeated phenomenon

Other hypernyms of Carnot cycle include cycle.

Carnot cycle (noun)	oscillation (noun)
a cycle (of expansion and compression) of an idealized reversible heat engine that does work without loss of heat	(physics) a regular periodic variation in value about a mean
	a single complete execution of a periodically repeated phenomenon
	the process of oscillating between states