Avoid a person

Definition of avoid for English Language Learners. : to stay away from (someone or something) : to prevent the occurrence of (something bad, unpleasant, etc.) : to keep yourself from doing (something) or participating in (something)

He continued to avoid her even though he knew she liked him.

keep away from or stop oneself from doing (something).
"avoid excessive exposure to the sun"
synonyms: keep away from, stay away from, steer clear of, give a wide berth to, fight shy of
"I avoid situations that stress me out"

repudiate, nullify, or render void (a decree or contract).

Avoid a person. To walk away from turn your back to them. Completely give them the cold shoulder and forget that you ever talked to them. Forget they are alive and or be rude and don't say "hello how are you?" How was your weekend? He gave her the cold shoulder by not acknowledging that she was there. He started being a complete ASS HOLE by ignoring her and forgetting that she cared about him. He became rude and selfish!!! Dumb Fuck!!