people who arrive or approach, or in the phrase 'all-comers,' anyone who wants to participate or compete.
From 'comer,' the agent noun formed from 'come' plus the suffix '-er.' Used historically in sports and competition to mean anyone willing to compete regardless of status.
The phrase 'all-comers competition' in sports shows an idealistic belief in fair competition—it doesn't matter who you are or where you come from, you get to try, which made these competitions revolutionary when first introduced.
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