To marginalize a group of people means to make them feel isolated and unimportant.
例句
The effect of this has been to increasingly marginalize the local authority sector...這件事的影響是使地方當局越來越受到排斥。We've always been marginalized, exploited, and constantly threatened.我們總是遭到排擠、剝削和不斷的恐嚇。
英英詞典釋義
Noun
1. the social process of becoming or being made marginal (especially as a group within the larger society);
"the marginalization of the underclass""the marginalization of literature"