traffic jam
US /ˈtræf.ɪk ˌdʒæm/
UK /ˈtræf.ɪk ˌdʒæm/
1.
a long line of vehicles on a road that cannot move or can only move very slowly
:
•
I was stuck in a huge traffic jam for an hour.
•
The accident caused a massive traffic jam on the highway.