give free rein to (one)

give free rein to (one)

To give one complete freedom to do what one wants or chooses. "Rein" refers to the reins of a horse. Can you believe the boss gave free rein to me? Finally, I can present a campaign with my own vision!
See also: free, give, rein

give free rein to someone

 and give someone free rein
Fig. to allow someone to be completely in charge (of something). (Alludes to loosening the reins of a horse and therefore control.) The boss gave the manager free rein with the new project. The principal gave free rein to Mrs. Brown in her classes.
See also: free, give, rein

give free rein to

see under free hand.
See also: free, give, rein