Dialectal or informal plural of 'one' used in some English-speaking regions to mean 'those people or things; ones.'
From 'one' + plural '-s' or '-ns'. This is a dialectal survival from Middle English and Scottish English where 'anes' or 'uns' were standard. It appears in working-class and regional speech patterns.
Uns is disappearing from English because standard education discourages dialect words, but it shows how some English speakers still maintain 700-year-old grammar patterns in casual speech!
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