tip truck vs dumper

tip truck and dumper both are nouns.

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

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

tip 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 tip truck include dump truck, tipper, tipper lorry, tipper truck.

tip 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