kinetic energy vs K.E.

kinetic energy and K.E. both are nouns.

Word	Noun	Adjective	Verb	Adverb
kinetic energy	Yes	No	No	No
K.E.	Yes	No	No	No

As nouns, kinetic energy and K.E. are synonyms defined as:

kinetic energy and K.E.: the mechanical energy that a body has by virtue of its motion

kinetic energy (noun)	K.E. (noun)
the mechanical energy that a body has by virtue of its motion	the mechanical energy that a body has by virtue of its motion