pleasure boat vs pleasure craft

pleasure boat and pleasure craft both are nouns.

Word	Noun	Adjective	Verb	Adverb
pleasure boat	Yes	No	No	No
pleasure craft	Yes	No	No	No

As nouns, pleasure boat and pleasure craft are synonyms defined as:

pleasure boat and pleasure craft: a large motorboat that has a cabin and plumbing and other conveniences necessary for living on board

Other synonyms of pleasure boat include cabin cruiser, cruiser.

pleasure boat (noun)	pleasure craft (noun)
a large motorboat that has a cabin and plumbing and other conveniences necessary for living on board	a large motorboat that has a cabin and plumbing and other conveniences necessary for living on board