companion

a person who travels with you or spends a lot of time with you เพื่อน, เพื่อนเดินทาง

He and his companion checked out of the hotel on Monday at 11.58am.

The right pet can be  a reliable, faithful companion who is always pleased to see you.

Research has found that people tend to increase or reduce the amount of food they eat to stay even with their dining companions.