'eastbound' definitions:

Definition of 'eastbound'

From: WordNet
adjective
Moving toward the east; "eastbound trains" [syn: eastbound, eastward]

Definition of 'eastbound'

From: GCIDE
  • eastbound \eastbound\ adj.
  • 1. moving toward the east; as, eastbound trains.
  • Syn: eastward. [WordNet 1.5]
  • 2. designated for traffic moving toward the east; -- of lanes in roads or railroads, or other traffic lanes; as, the eastbound lanes of Interstate 80 are blocked by an overturned tractor-trailer; the train will leave on eastbound platform 5. [PJC]