hodometer vs mileometer

hodometer and mileometer both are nouns.

Word	Noun	Adjective	Verb	Adverb
hodometer	Yes	No	No	No
mileometer	Yes	No	No	No

As nouns, hodometer and mileometer are synonyms defined as:

Other synonyms of hodometer include milometer, odometer.

hodometer (noun)	mileometer (noun)
a meter that shows mileage traversed	a meter that shows mileage traversed