panel truck vs delivery truck

panel truck and delivery truck both are nouns.

Word	Noun	Adjective	Verb	Adverb
panel truck	Yes	No	No	No
delivery truck	Yes	No	No	No

As nouns, panel truck and delivery truck are synonyms defined as:

panel truck and delivery truck: a van suitable for delivering goods or services to customers

Other synonyms of panel truck include delivery van.

panel truck (noun)	delivery truck (noun)
a van suitable for delivering goods or services to customers	a van suitable for delivering goods or services to customers