rush hourrush hour
a time of the day when business, traffic, etc. are especially heavy
A period of heavy traffic.
- Of or pertaining to the rush hour.
- The rush-hour trains are normally extremely busy
(plural rush hours)
- (idiomatic) The times of the day when traffic jams are commonplace, due mainly to people commuting to or from work.
- It takes 30 minutes to drive there, but maybe 2 hours during the rush hour.