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

The safety of this car is very high.

My new safety razor is very easy to use.

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

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

He chose to discard a safe tile in mahjong.

The government is considering the security of its citizens as its top priority.

This round shape represents a perfect circle.

I went around the lake on a sightseeing boat.

He is studying the history of Atakebune.