get rid of

Also, be rid of. Eliminate, discard, or free oneself from. For example, It's time we got rid of these old newspapers, or He kept calling for months, but now we're finally rid of him. The first expression dates from the mid-1600s, the second from the 1400s. Also see get out of, def. 5.

The verb has 3 meanings:

Meaning #1: dispose of
  Synonym: remove

Meaning #2: terminate or take out
  Synonyms: eliminate, do away with

Meaning #3: do away with
  Synonym: abolish