To ostracize.
To vote against, especially in an exclusive organization.
A black ball used to indicate such a negative vote.
A rejection; a vote against admitting someone.
A kind of large black sweet; a niggerball.
A game, a standardized version of the English version of eight-ball.
A substance for blacking shoes, boots, etc. or for taking impressions of engraved work.
To expel; to put out.
To omit from consideration.
To bar (someone or something) from entering; to keep out.
To refuse to accept (evidence) as valid.
To eliminate from diagnostic consideration.