OS

OS OS also O/​S

abbreviation for operating system; out of stock; outsize; outstanding

* * *

OS UK US (also O/S) noun

► IT ABBREVIATION for OPERATING SYSTEM(Cf. ↑operating system)

► COMMERCE ABBREVIATION for OUT OF STOCK(Cf. ↑out of stock)

► ACCOUNTING ABBREVIATION for OUTSTANDING(Cf. ↑outstanding)

► COMMERCE ABBREVIATION for OUTSIZED(Cf. ↑outsized)