Definitions

1. adjective

oriented or moving in the direction of the north, especially in reference to travel or movement

“The northbound train departed from the station at 8 am.”

2. noun

a train, bus, or other vehicle traveling in the direction of the north

“The northbound lane of the highway was congested due to roadwork.”

3. verb

to travel or move in the direction of the north

“We will northbound to Alaska this summer for a vacation.”