ENGLISH
REFERENCE

eastbound

adj.
B2 Upper Intermediate US //ˈistˌbaʊnd// UK //ˈiːstbaʊnd// east·bound

adj. moving or leading toward the east. You use this to describe roads, trains, or travelers headed in that direction.

adj. moving, leading, or facing toward the east. Typically used attributively before a noun to describe traffic flow or travel direction.


SIMPLE

The eastbound train leaves at noon.

CONTEXTUAL

Heavy traffic is building up on the eastbound lanes of the highway due to a stalled vehicle.

COMPLEX

Commuters should expect significant delays on all eastbound routes this morning as emergency crews work to clear debris from the tracks following the storm.

Synonyms
Origin

From east + -bound.

Usage

Typically placed before the noun it modifies; often contrasted with westbound.

© 2026 English Reference