have
Own
Possess is to own something.
have
The word "possess" means to own, have, or control something. It typically refers to having ownership or physical control over an object, but it can also refer to having a particular quality or characteristic.
A four letter word meaning the foundation of something is base.
What is a 4 letter word that means a foundation of something
A ten letter word for something that occurs could be an occurrence or happenings.
Urge
A five-letter word that means "maybe" is "might."
One answer could be "chair" (hair, air).
Improve