dozer vs bulldozer

dozer and bulldozer both are nouns.

Word	Noun	Adjective	Verb	Adverb
dozer	Yes	No	No	No
bulldozer	Yes	No	No	No

As nouns, dozer and bulldozer are synonyms defined as:

dozer and bulldozer: large powerful tractor; a large blade in front flattens areas of ground

dozer (noun)	bulldozer (noun)
large powerful tractor; a large blade in front flattens areas of ground	large powerful tractor; a large blade in front flattens areas of ground