Ignoring is trying to not react to their bullying, but still trying to be civil.

Ignoring would be sitting next to Uncle Joe at dinner while he monopolizes the discussion about how "brown people are horrible."

Ignoring is trying to not react to their bullying, but still trying to be civil. Shunning is literally avoiding all contact, blocking them, and refusing to work with them.

Ignoring would be sitting next to Uncle Joe at dinner while he monopolizes the discussion about how "brown people are horrible."

Shunning is getting up from the dinner table, turning to…