Большой русско-английский фразеологический словарь

Я15

ОБЩИЙ ЯЗЫК (у кого с кем)NPsing onlyfixedWO

common interests, values, viewsetcthat allow two or more people to find mutual understanding: (have (shareetc)) a common language
(speak) the same language(share) common ground(in limited contexts) (be) on the same wavelength.