(temporal location) Formerly and habitually or repeatedly, but possibly no longer, did.

present participle of use

use; utilization

Alternative spelling of U.S. of A.

Currently being used. / (archaic) Used; accustomed.

(informal) United States dollar

Contraction of us is.

plural of using

plural of U

(colloquial, usually with a following present participle or infinitive expression) Used to indicate that the specified action cannot succeed or offers no advantage if successful