Added 9 October 2026 lighthouse /ˈlaɪthaʊs/ noun Categories: ThingsRare Words In Latin: pharus Wiktionary noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about lighthouse at Wordnik → Where our words come from → A tower with a light that gives warning of shoals to passing ships. Origin From light + house. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: pharosbeaconflagshipheadlightheadlamptaillightsignagelanternlandmarkpharelight Back to today's word