Dictionary.com
definitions
  • synonyms

o.p.

See more synonyms for o.p. on Thesaurus.com
  1. out of print.
Show More

O.P.1

  1. Order of Preachers (Dominican).
Show More

Origin of O.P.1

From the Latin word Ōrdō Praedicātōrum

O.P.2

  1. observation post.
  2. British Theater. opposite prompt.
  3. out of print.
  4. overproof.
Show More

OP

or O.P.

  1. observation post.
Show More
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for o.p.

o.p.

O.P.

abbreviation for
  1. out of print
Show More

OP

abbreviation for
  1. military observation post
  2. Ordo Praedicatorum (the Dominicans)
  3. organophosphate
Show More

Word Origin

(for sense 2) Latin: Order of Preachers
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012