English definition of “proper”
CORRECT [always before noun] › correct or suitable: the proper way to do something Please put those books back in the proper place.
REAL [always before noun] mainly UK › real and satisfactory: his first proper job You should eat some proper food instead of just sweets.
ACCEPTABLE › socially acceptable: It's not proper to interrupt someone when they're speaking.
MAIN [always after noun] › referring to the main or most important part of something: I live outside Cambridge - I don't live in the city proper.