Wordnet 3.0
VERB (2)
1. 
 persuade completely, often through coercion; 
- Example: "The propaganda brainwashed many people"2. 
 submit to brainwashing; 
 indoctrinate forcibly; 
The Collaborative International Dictionary of English v.0.48:
brainwash \brainwash\ v. [imp. & p. p. brainwashed; p. pr. &
   vb. n. brainwashing]
   1. to persuade completely; as, the propaganda brainwashed
      many people.
      [WordNet 1.5]
   2. to to indoctrinate forcibly or by means of torture, or by
      constant psychological pressure.
   Syn: submit to brainwashing.
        [WordNet 1.5]
WordNet (r) 3.0 (2006):
brainwash
    v 1: persuade completely, often through coercion; "The
         propaganda brainwashed many people"
    2: submit to brainwashing; indoctrinate forcibly
Moby Thesaurus II by Grady Ward, 1.0:
20 Moby Thesaurus words for "brainwash":
   alienate, beat into, catechize, condition, corrupt,
   counterindoctrinate, imbue, implant, impregnate, impress,
   inculcate, indoctrinate, infix, infuse, inoculate, instill,
   program, reindoctrinate, subvert, win away