caterpillar tread vs caterpillar track

caterpillar tread and caterpillar track both are nouns.

Word	Noun	Adjective	Verb	Adverb
caterpillar tread	Yes	No	No	No
caterpillar track	Yes	No	No	No

As nouns, caterpillar tread and caterpillar track are synonyms defined as:

caterpillar tread and caterpillar track: an endless metal belt on which tracked vehicles move over the ground

Other synonyms of caterpillar tread include track.

caterpillar tread (noun)	caterpillar track (noun)
an endless metal belt on which tracked vehicles move over the ground	an endless metal belt on which tracked vehicles move over the ground