He used to open himself only to the very few people who were close to him.

You use this to open the account in your child's name.

In 1991 and 1992 it was frequently used to open the set.

The band also used it to open some of their live shows.

On a table is a key which Alice can use to open one small door.

"I might use it to open too many of the wrong doors."

We used to open and close concerts with '220' for a long time.

I will be able to use those to open the way for my mother.

Words were used by them as keys to open anything that was closed.

A key is an object used to open and close locks.