OP

OP is short for original poster.

In online discussion forums, OP is short for original poster — the person who started a discussion thread. Within the forum thread others may direct comments specifically to the original poster using the OP abbreviation. The original poster may also include this abbreviation in subsequent posts he or she contributes.

Vangie Beal
Vangie Beal is a freelance business and technology writer covering Internet technologies and online business since the late '90s.

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