OP

1. Observation post (military) or point
2. Opposite prompt (theatre)
3. Ordinis or Ordo Praedicatorum (Latin), (of) the order of Preachers, ie Dominicans
4. Organophosphate

op¹ /op/ (informal)

A military or surgical operation

op² /op/

1. Operator
2. Opposite
3. Opus

op³ or o/p

Out of print

• prima ballerina assoluta
• prima ballerinas
• primacies
• primacy
• prima donna
• prima donna assoluta
• prima donnas
• primaeval
• primaevally
• prima facie
• primage
• primages
• primal
• primalities
• primality
• primally
• primal scream therapy
• primal therapy
• primaquine
• primaries
• primarily
• primariness
• primarinesses
• primary
• primary assemblies