She is my best friend.

His fine play determined the outcome of the game.

This building meets safety standards.

This area is very safe.

They (referring to women or girls) are my best friends.

We understand that teamplay is necessary for us to succeed.

He saved money as a safety net before starting his own business.

Please always fasten your seatbelt when you get in the car.

This area is monitored 24 hours a day by security cameras.

The safety of this car is very high.