trailer camp vs trailer park

trailer camp and trailer park both are nouns.

Word	Noun	Adjective	Verb	Adverb
trailer camp	Yes	No	No	No
trailer park	Yes	No	No	No

As nouns, trailer camp and trailer park are synonyms defined as:

trailer camp and trailer park: a camp where space for house trailers can be rented; utilities are generally provided

trailer camp (noun)	trailer park (noun)
a camp where space for house trailers can be rented; utilities are generally provided	a camp where space for house trailers can be rented; utilities are generally provided