Under the Whyte notation system, a steam locomotive that has two leading wheels, two driving wheels and two trailing wheels.

(music) A meter of two half notes per measure.

(text messaging, informal) Abbreviation of to. / (computing) Abbreviation of to; designating conversion from one format to another

(text messaging, informal, eye dialect) Abbreviation of too.

Alternative form of 2S; Abbreviation of two-spirited.

Alternative form of 2S; Abbreviation of two-spirit.

(US, military, historical) Fokker A-2 air ambulance that did not see production. / (military) Intelligence section of an air force staff. / (military) Intelligence officer on an air force staff.

Almost A-1 in quality; rated just below the best.

Rare form of two cents.

Under the Whyte notation system, a steam locomotive that has two coupled driving wheels followed by two trailing wheels, with no leading wheels.