dump truck vs dumper

dump truck and dumper both are nouns.

Word	Noun	Adjective	Verb	Adverb
dump truck	Yes	No	No	No
dumper	Yes	No	No	No

As nouns, dump truck and dumper are synonyms defined as:

dump truck and dumper: truck whose contents can be emptied without handling; the front end of the platform can be pneumatically raised so that the load is discharged by gravity

Other synonyms of dump truck include tip truck, tipper, tipper lorry, tipper truck.

dump truck (noun)	dumper (noun)
truck whose contents can be emptied without handling; the front end of the platform can be pneumatically raised so that the load is discharged by gravity	truck whose contents can be emptied without handling; the front end of the platform can be pneumatically raised so that the load is discharged by gravity