Subscriber login


Forgot your password?

Library card login

Other

OSS

Definition of OSS

abbreviation

  • (in the US) Office of Strategic Services, an intelligence organization.

OSS in other Oxford dictionaries

Definition of OSS in the US English dictionary
  |  Cite
Oxford Dictionaries Pro

For Oxford's best resources for writers, plus thesaurus, audio, and 1.9m examples.

Shop for an Oxford dictionary

Find the perfect Oxford dictionary for you in our online shop.
SHOP NOW ►

Word of the day

monocular

/ məˈnɒkjʊlə /
adjective , noun
with, for, or in one eye …