ˈrunning mate BrE AmE noun [countable usually singular]
the person chosen by someone who is trying to become president, leader etc to help win an election, and be the second most important political person if they are elected
ˈrunning mate BrE AmE noun [countable usually singular]
the person chosen by someone who is trying to become president, leader etc to help win an election, and be the second most important political person if they are elected
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012