| Main Entry: | |
| Part of Speech: | noun |
| Definition: | traffic tie-up |
| Synonyms: | blockage, bottleneck, congestion, gridlock, jam, logjam, roadblock, rush hour, traffic congestion |
| Main Entry: | congestion |
| Part of Speech: | noun |
| Definition: | blockage |
| Synonyms: | bottleneck, clogging, crowdedness, crowding, excess, jam, mass, overcrowding, overdevelopment, overpopulation, press, profusion, rubber-necking, snarl-up, surfeit, surplus, traffic jam |
| Antonyms: | opening |
| Main Entry: | holdup |
| Part of Speech: | noun |
| Definition: | problem |
| Synonyms: | bottleneck, delay, difficulty, gridlock, hitch, obstruction, setback, snag, stoppage, traffic jam, trouble, wait |
| Antonyms: | aid, assistance, help |
| Main Entry: | rush hour |
| Part of Speech: | noun |
| Definition: | heaviest commuter traffic |
| Synonyms: | bottleneck, congestion, gridlock, heavy traffic, jam, road rage, traffic jam |