I have made my research about this word and found it means "to keep".

However it doesn't come in the sense of "to have possession" of sth. as "behalten".

For example:

> 
> Kann ich deinen Platz behalten?
> 
> 
> 

Also it does not come the meaning "to maintain sth." as "beibehalten".

For example:

> 
> Ich behalte meine Geschwindigkeit bei.
> 
> 
> 

I am confused about this word, and not able to realize how and when to use it.