Used other than figuratively or idiomatically: see free, hand.
free rein
A hereditary or official right or privilege.
A right, especially when due to one's position or role.
A right, or power that is exclusive to a monarch etc, especially such a power to make a decision or judgement.
A property, attribute or ability which gives one a superiority or advantage over others; an inherent advantage or privilege; a talent.
Characterized by lawless state actions, as in a prerogative state.
Having a hereditary or official right or privilege.