OP almost always stands for "Original Poster" or "Original Part/Piece".
In OP art OP means Optical Illusion.
In all music 'Op' or Opus mean 'work' so Op 77 would mean work number 77.
In all music 'Op' or Opus mean 'work' so Op 77 would mean work number 77.
OP means outpatient.
oven prepared
eye, sightAgainstExamples:OpponentOppositeOppressed
eye, sightAgainstExamples:OpponentOppositeOppressed
original poster
Opinion editorial
It means overall persition.
original pack
Operator