WordNet (r) 3.0 (2006):

carry out
    v 1: put in effect; "carry out a task"; "execute the decision of
         the people"; "He actioned the operation" [syn: carry
         through, accomplish, execute, carry out, action,
         fulfill, fulfil]
    2: pursue to a conclusion or bring to a successful issue; "Did
       he go through with the treatment?"; "He implemented a new
       economic plan"; "She followed up his recommendations with a
       written proposal" [syn: follow through, follow up,
       follow out, carry out, implement, put through, go
       through]

Moby Thesaurus II by Grady Ward, 1.0:

83 Moby Thesaurus words for "carry out":
   abide by, adhere to, administer, administrate, apply,
   be responsible for, bring about, bring off, bring to effect,
   bring to pass, carry into effect, carry into execution, carry off,
   carry on, carry through, come through, come through with, complete,
   conduct, deal with, direct, discharge, do, drive, effect,
   effectuate, enforce, execute, extend out, fill out, finalize,
   fulfill, get through, go, go out, go through, govern, handle,
   honor, implement, make, make go, make out, manage, maneuver,
   manipulate, observe, operate, outdistance, outlie, outrange,
   outstretch, perform, perform on, pilot, play, practice, promulgate,
   prosecute, pull off, put across, put in force, put in practice,
   put into effect, put into execution, put into practice, put over,
   put through, put to use, range out, reach out, render, run, seal,
   see to, sign, steer, stretch out, take care of, transact,
   translate into action, work, work out