pleasure trip vs outing

pleasure trip and outing both are nouns.

Word	Noun	Adjective	Verb	Adverb
pleasure trip	Yes	No	No	No
outing	Yes	No	No	No

As nouns, pleasure trip and outing are synonyms defined as:

Other synonyms of pleasure trip include excursion, expedition, jaunt, junket, sashay.

pleasure trip (noun)	outing (noun)
a journey taken for pleasure	a journey taken for pleasure
	a day devoted to an outdoor social gathering