Initialism of Upper Peninsula. / (religion) Initialism of United Presbyterian. / (India) Initialism of Uttar Pradesh. / (software) Initialism of Unified Process.

Initialism of unqualified prospect. / Initialism of university press.

(informal) Legitimate; honest; upright.

Alternative spelling of on the up-and-up

In a position of prominence or importance. / Used other than figuratively or idiomatically: see up, there.

(idiomatic) rising; becoming greater in number or magnitude. / (sports) While the ball is rising.

(colloquial) Abruptly; unexpectedly.

(idiomatic) To do or be involved in doing; to do (often something mischievous or inappropriate). / (idiomatic) To depend on, to be the choice of.

Used to indicate increase. / Used to indicate higher position or direction, literally or figuratively.

(idiomatic) Willing to participate in; interested in. / (idiomatic) Being or due to be evaluated, inspected, judged, considered, sold, etc., in the stated circumstances or by the stated method.