Back titrations are commonly used in analytical chemistry.

I received many back answers from the students.

He received several back slaps after his successful performance.

The team scored two back fives in the game.

I need to get my back teeth checked by the dentist.

The back washes from the waves created a strong current.

We took the back roads to avoid traffic.

The back gates of the house were locked.

The surveyor recorded the back bearings of each point.

The firefighters used back-burns to control the spread of the wildfire.