It is proper to dress formally for a job interview.

He is a proper gentleman.

A proper fraction is a fraction where the numerator is less than the denominator.

Proper motion is the apparent motion of a star across the celestial sphere.

John is a proper noun.

Please read the proper instructions before using the product.

She always dresses properly for work.

Property prices have increased a lot over the past year.

In some states, community property laws dictate that all assets acquired during a marriage are considered joint property.

I found some lost property on the train.