(printing) Alternative form of two-up

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

(US, taxation) A form reporting one's compensation as an employee during a year at an employer or personal income taxation.

(computing) IBM Personal System/2 / (electronics) the serial I/O interface standard created for the IBM PS/2 keyboard and mouse; which uses a mini-DIN connector

Alternative spelling of two-dimensional.

(military, intelligence, US, initialism) staff military intelligence officer position in smaller units, or section in larger formations

Alternative form of number 2 pencil

plural of 2-methylpropane

(organic chemistry) isobutane

(biblical, rare) Abbreviation of 2 John.