From Longman Dictionary of Contemporary Englishplaymateplay‧mate /ˈpleɪmeɪt/ noun [countable] FRIENDLYa friend that a child plays with
Examples from the Corpus
playmate• But Jane Goodall and others have reported that among chimpanzees, the enemies of the morning will be playmates of the afternoon.• Tim Skerritt had been his playmate.• I loved Jo: playmate in psychic realities, friend, fellow therapist, mentor and so much more.• One of my playmates at the time, Betty, came from such a home.• Such children imitate what they see but do not yet reason like their older playmates.• She could not find any satisfactory playmates.• As children acquire the pidgin, they use it with playmates and other children in their peer group. 