Verb
shun - To persistently avoid, ignore, or reject (someone or something) through antipathy or caution
When David tried to join in the conversation at the club, they ignored him, and he suspected that he was being shunned because he had a different religion than they did.
grapple - To seize something and hold it firmly; to wrestle with; to ponder and intensely evaluate a problem; to struggle to deal with
When Bill got lost on his trip to Paris, he had to grapple with the task of finding a place to sleep and not knowing the language.