phrasal
: to allow (as a horse) free rein
the advanced students often are given their heads and allowed to launch scientific programs of their own — Karl Detzer
phrasal
: to allow (as a horse) free rein
the advanced students often are given their heads and allowed to launch scientific programs of their own — Karl Detzer
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012