to clear, disencumber, or free of something objectionable (usually fol. by of&hasp;): I want to rid the house of mice. In my opinion, you'd be wise to rid yourself of the smoking habit.
to relieve or disembarrass (usually fol. by of&hasp;): to rid the mind of doubt.
to deliver or rescue: to rid them out of bondage; to rid him from his enemies.
to be free of or no longer encumbered by: to be rid of obligations.
to eliminate or discard: It's time we got rid of this trash.