A Chinese secret society or gang, or a grasping tool (usually plural as 'tongs').
Chinese word meaning 'hall' or 'meeting place', borrowed into English in the 19th century. The tool meaning comes from Old English 'tang' meaning anything that grips or bites.
The collision of two completely different 'tong' words in English - one from Chinese immigrant communities and one from Anglo-Saxon toolmaking - shows how languages can create accidental twins across cultures.
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