speed bump

1. 1.

   a hindrance to speeding created by a crosswise ridge in the surface of a roadway

   Broaderhindrance

Questions about speed bump

What does speed bump mean?

speed bump means "a hindrance to speeding created by a crosswise ridge in the surface of a roadway".

Is speed bump a common word?

speed bump is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.