speedbump

noun
UK /ˈspiːd.bʌmp/
US /ˈspiːd.bʌmp/

A small raised strip on a road that makes cars slow down.

The car went slowly over the speedbump near the school.


OTHER MEANINGS

2. A small problem that slows progress for a short time.

Bad weather was just a speedbump in our travel plans.

3. A raised ridge on a racetrack or path to control speed.

The cyclists slowed as they crossed the speedbump on the track.

4. Anything that briefly interrupts a smooth process.

The paperwork was a minor speedbump before the project could start.