(colloquial) Initialism of United States of America. / (US, military) Initialism of United States Army. / (nonstandard) Initialism of Union of South Africa.

Abbreviation of United States Attorney.

A custom or established practice. / (uncountable) Custom, tradition. / The act of using something; use, employment.

plural of usage

Capable of being used. / Easy to use; exhibiting good usability. / homosexual

Initialism of USA Today, an American newspaper.

The state or condition of being usable. / The degree to which an object, device, software application, etc. is easy to use with no specific training.

Initialism of United States Air Force.

Acronym of United States Anti-Doping Agency.

Initialism of USA Cycling., the National Governing Body (NGB) for cycling in the United States