verbs
stay clear from; keep away from; keep out of the way of someone or something
"Her former friends now avoid her"
prevent the occurrence of; prevent from happening
"Let's avoid a confrontation"; "head off a confrontation"; "avert a strike"
avert,
avoid,
debar,
deflect,
fend off,
forefend,
forfend,
head off,
obviate,
stave off,
ward off
refrain from doing something
"She refrains from calling her therapist too often"; "He should avoid publishing his wife's memories"
refrain from certain foods or beverages
"I keep off drugs"; "During Ramadan, Muslims avoid tobacco during the day"
declare invalid
"The contract was annulled"; "void a plea"