1. OOS - Noun
2. OOS - Adjective
OOS (uncountable)
(physics, measurement) Initialism of object-oriented scanning.
(engineering) Initialism of out of specification.
(retail) Initialism of out of stock.
Initialism of out of scope.
Initialism of out of sample.
Initialism of out of service.
Source: en.wiktionary.org• From November 29 to November 30, 24 male drivers between the ages of 29 and 52 were stopped and breathalysed by precinct officers on Princes and Ampthill avenues, Oos Street, Bunyan Street and Harper Road. Source: Internet