fren ‧ e ‧ my /ˈfrenəmi/ BrE AmE noun ( plural frenemies ) [countable] informal
someone who you have a friendly relationship with but is really an enemy or competitor:
The office is full of frenemies.
fren ‧ e ‧ my /ˈfrenəmi/ BrE AmE noun ( plural frenemies ) [countable] informal
someone who you have a friendly relationship with but is really an enemy or competitor:
The office is full of frenemies.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012