whole step vs whole tone

whole step and whole tone both are nouns.

Word	Noun	Adjective	Verb	Adverb
whole step	Yes	No	No	No
whole tone	Yes	No	No	No

As nouns, whole step and whole tone are synonyms defined as:

Other synonyms of whole step include step, tone.

whole step (noun)	whole tone (noun)
a musical interval of two semitones	a musical interval of two semitones