Proper isn't Synonyms

Proper replaced

appropriate isn't

correct isn't

regular isn't

Definitions for Proper

(adjective) following the established traditions of refined society and good taste
(adjective) being in agreement with the truth or a fact or a standard
(adjective) marked by or showing careful attention to set forms and details

PI abbreviation

PI is an abbreviation for Proper Isn't

What does PI stand for?

PI stands for "Proper Isn't"