(originally, UK) A junction designed to prevent congestion and gridlock. Vehicles may only enter the box-shaped area (usually marked with crossing diagonal lines) if their exit from the junction is clear, or in some cases if they intend to make a turn.
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
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