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Ostracize is a verb
Do not ostracize Molly from your circle of friends just because she has braces and ugly pigtails.
The Klu Klux Klan would ostracize any member who defended an African American.
The faculty was known to ostracize any professor who opposed the popular dean.
ostracize
A mom could tell her son,
"Dont ostracize your brother!"
as in dont leave him out and make sure he is included