lighthouse

noun light·house \ ˈlīt-ˌhau̇s \
Updated on: 12 Nov 2017

Definition of lighthouse

1 :a structure (such as a tower) with a powerful light that gives a continuous or intermittent signal to navigators
2 :beacon 3

Recent Examples of lighthouse from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lighthouse.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Illustration of lighthouse

First Known Use of lighthouse

1622


LIGHTHOUSE Defined for English Language Learners

lighthouse

noun

Definition of lighthouse for English Language Learners

  • : a tower with a powerful light that is built on or near the shore to guide ships away from danger


LIGHTHOUSE Defined for Kids

lighthouse

noun light·house \ ˈlīt-ˌhau̇s \

Definition of lighthouse for Students

:a tower that produces a powerful glow to guide sailors at night or in poor visibility


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