'Highroad' definitions:

Definition of 'highroad'

From: WordNet
noun
A highway [syn: highroad, trunk road]

Definition of 'Highroad'

From: GCIDE
  • Highroad \High"road`\, n. A highway; a much traveled or main road. [Mostly British]
  • Syn: trunk road. [1913 Webster]

Synonyms of 'highroad'

From: Moby Thesaurus