centner vs cwt

centner and cwt both are nouns.

Word	Noun	Adjective	Verb	Adverb
centner	Yes	No	No	No
cwt	Yes	No	No	No

As nouns, centner and cwt are synonyms defined as:

centner and cwt: a United States unit of weight equivalent to 100 pounds

Other synonyms of centner include cental, hundredweight, quintal, short hundredweight.

centner (noun)	cwt (noun)
a United States unit of weight equivalent to 100 pounds	a British unit of weight equivalent to 112 pounds
in some European countries: a unit of weight equivalent to 50 kilograms	a United States unit of weight equivalent to 100 pounds
a unit of weight equal to 100 kilograms in the metric system