kilocycle vs kilohertz

kilocycle and kilohertz both are nouns.

Word	Noun	Adjective	Verb	Adverb
kilocycle	Yes	No	No	No
kilohertz	Yes	No	No	No

As nouns, kilocycle and kilohertz are synonyms defined as:

Other synonyms of kilocycle include kc, kHz, kilocycle per second.

kilocycle (noun)	kilohertz (noun)
one thousand periods per second	one thousand periods per second