A postal service in which all mail is sent by airmail at the usual surface rate with no need of a special label.

(television, radio) During a classroom quiz or game show, a question posed to two or more opponents where both are able to answer by signaling, and depending on the rules, the one that responds with a correct answer either takes control of the game or proceeds to advance to a subsequent round.

(fashion) A trend in high fashion that originated in street culture

Alternative spelling of warmup jacket

enthusiastic and energetic drive or ambition

Alternative form of head-up display

A semitransparent graphical and textual display of information projected upon the field of view of a pilot of an aircraft. Abbreviation: HUD

A place, such as a nightclub, where people congregate in order to find a romantic or sexual partner.

(idiomatic) To add stitches to the knitting needle that were previously bound off, or that belong to the selvage, during the process of knitting or entrelac.

Stitches that were added to the row, during knitting.