playfellow
/ˈpleɪfɛloʊ/Definitions
1. noun
A person with whom one plays or a companion in play, or a friend, especially a child’s companion.
“As a child, her playfellow was her little brother.”
2. noun
A person of equal or similar status or rank.
“In the play, the two characters were playfellows, sharing the stage and their secrets.”