(computing) The time required for a user to perform a task using a computer, excluding the time when the computer is busy processing.

plural of usage guide

(linguistics, education) A book that explains how to use a standardised language correctly and in keeping with currently accepted style, usually through the explication of what are conservatively viewed as language "errors".

As usual.

Alternative form of multiuser

(dialectal) Us. (Compare we-uns.)

(computing) Created or defined by the user of a system, rather than being included in the original package.

(rail transport, UK) Of a level crossing, one where a railway crosses a right of way such as a road on private land, a footpath or a bridleway. Any gates or barriers provided often need to be operated manually, with some crossings requiring users to telephone a signaller to check that it is safe to cross.

Initialism of United States Information Agency.

(slang, vulgar) Ineffectual, pointless.