avoid (http://definr.com/avoid)

     v 1: stay clear from; keep away from; keep out of the way of
          someone or something; "Her former friends now avoid her"
          [ant: confront]
     2: prevent the occurrence of; prevent from happening; "Let's
        avoid a confrontation"; "head off a confrontation"; "avert
        a strike" [syn: debar, obviate, deflect, avert, {head
        off}, stave off, fend off, ward off]
     3: refrain from doing something; "She refrains from calling her
        therapist too often"; "He should avoid publishing his
        wife's memoires"
     4: refrain from certain foods or beverages; "I keep off drugs";
        "During Ramadan, Muslims avoid tobacco during the day"
        [syn: keep off]
     5: declare invalid; "The contract was annulled"; "avoid a plea"
        [syn: invalidate, annul, quash, void, nullify]
        [ant: validate]