1.Definition: appropriate for a condition or purpose or occasion or a person's character, needs
"Everything in its proper place"
2.Definition: having all the qualities typical of the thing specified
"Wanted a proper dinner, not just a snack", "He finally has a proper job"
3.Definition: limited to the thing specified
"The city proper", "His claim is connected with the deed proper"
4.Definition: marked by suitability or rightness or appropriateness
"Proper medical treatment", "Proper manners"