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speed bump

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noun
a rounded ridge built crosswise into the pavement of a road or driveway to force vehicles to slow down.
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On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Origin of speed bump

First recorded in 1970–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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