Wordnet 3.0
NOUN (1)
1.
one of the two sides of a motorway where traffic travels in one direction only usually in two or three lanes;
The Collaborative International Dictionary of English v.0.48:
carriageway \carriageway\ n.
one of the two sides of a motorway where traffic travels in
one direction only, usually in two or three lanes. [British]
[WordNet 1.5]
WordNet (r) 3.0 (2006):
carriageway
n 1: one of the two sides of a motorway where traffic travels in
one direction only usually in two or three lanes