water cart vs cart

water cart and cart both are nouns.

Word	Noun	Adjective	Verb	Adverb
water cart	Yes	No	No	No
cart	Yes	No	Yes	No

As nouns, cart is a hypernym of water cart; that is, cart is a word with a broader meaning than water cart:

water cart: cart with a tank for water (especially with fresh water for sale)
cart: a heavy open wagon usually having two wheels and drawn by an animal

water cart (noun)	cart (noun)
cart with a tank for water (especially with fresh water for sale)	a heavy open wagon usually having two wheels and drawn by an animal
	wheeled vehicle that can be pushed by a person; may have one or two or four wheels

water cart (verb)	cart (verb)
	draw slowly or heavily
	transport something in a cart