expedition vs pleasure trip

expedition and pleasure trip both are nouns.

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

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

Other synonyms of expedition include excursion, jaunt, junket, outing, sashay.

expedition (noun)	pleasure trip (noun)
a journey organized for a particular purpose	a journey taken for pleasure
a military campaign designed to achieve a specific objective in a foreign country
a journey taken for pleasure
the property of being prompt and efficient
an organized group of people undertaking a journey for a particular purpose