lighthouse Meaning, Definition & Usage

  1. noun a tower with a light that gives warning of shoals to passing ships
    pharos; beacon; beacon light.

WordNet

Light"house` noun
Wordforms
plural Lighthouses
Definitions
  1. A tower or other building with a powerful light at top, erected at the entrance of a port, or at some important point on a coast, to serve as a guide to mariners at night; a pharos.

Webster 1913