名詞 blackball:

1. the act of excluding someone by a negative vote or veto
   同義詞：barring

動詞 blackball:

1. expel from a community or group
   同義詞：banish, ban, ostracize, ostracise, shun, cast out
2. vote against; refuse to endorse; refuse to assent
   同義詞：veto, negative

black.ball

n.（名詞）
A negative vote, especially one that blocks the admission of an applicant to an organization.
反對票：反對票，尤指妨礙了吸收某組織的申請人的一票
A small black ball used as a negative ballot.
反對選票：作為反對選票的小黑球
v.tr.（及物動詞）
black.balled,black.ball.ing,black.balls
To vote against, especially to veto the admission of.
投反對票：投反對票，尤指反對吸收
To shut out from social or commercial participation; ostracize or boycott.
除社會或商業(yè)參與之外；放逐或拒絕跟…（來往）

【引伸】
black.ball.er
n.（名詞）
<參考詞匯><同義詞>blackball,blacklist,boycott,ostracizeThe central meaning shared by these verbs is .to exclude from social, professional, or commercial activities.:
這些動詞共有的中心含義是.從社會、職業(yè)或商業(yè)活動中排除出去.：
例句：
blackballed from membership in the club;
取消俱樂部成員的資格；

例句：
the movie industry blacklisting suspected Communists;
電影業(yè)把嫌疑的共產(chǎn)主義黨人列入黑名單；

例句：
winegrowers hiring union grape pickers for fear of being boycotted;
種葡萄兼釀酒者雇用工會葡萄采摘工，因為害怕他們拒絕參加；

例句：
ostracized by the community for immoral activities. admit
因為道德敗壞的行為被社會所排斥 admit