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come-outer

[ kuhm-ou-ter ]
/ ˌkʌmˈaʊ tər /
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noun Informal.
an outspoken or very active supporter of a cause, especially a reformer or a social activist.
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Origin of come-outer

1830–40, Americanism;come out + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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