lighthouse

[lahyt-hous] / ˈlaɪtˌhaʊs /

NOUN

beacon

Synonyms

STRONGEST

flare lantern radar

STRONG

alarm alert balefire beam bonfire guidepost heliograph lamp lodestar pharos rocket sign watchtower

WEAK

signal fire smoke signal warning signal

NOUN

light

Synonyms

STRONGEST

bulb candle daylight flash glare glow lamp lantern radiation ray star sun sunshine window

STRONG

aurora beacon blaze brightness brilliance brilliancy coruscation dawn daybreak daytime effulgence emanation flare gleam glimmer glint glitter illumination incandescence irradiation lambency luminosity luster morn morning phosphorescence radiance refulgence scintillation sheen shine sparkle splendor sunbeam sunrise taper torch

WEAK

fulgor

Antonyms

STRONG

darkness dimness dullness eventide sundown sunset

WEAK

dark night obscurity

NOUN

Very lights

Synonyms

WEAK

beacon stormy petrel

NOUN

watchtower

Synonyms

STRONG

barbican beacon landmark observatory

WEAK

mirador

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

This makes the system behave like a flashing cosmic lighthouse.

From Science Daily • Mar. 11, 2026

I walk a frozen Bothnian Gulf at Nallikari, an obscured lighthouse, a delinquent lifeguard stand, and makeshift saunas stand on white expanse like archaeology.

From Salon • Mar. 8, 2026

A short hike to the beach afforded views of the starkly angular lighthouse known as the Charleston Light.

From The Wall Street Journal • Jan. 2, 2026

The Maritime & Coastguard Agency broadcasted warnings to ships in the Solent after the containers came off cargo ship the Baltic Klipper near the Nab tower lighthouse, off Bembridge.

From BBC • Dec. 8, 2025

The brother’s glance went slowly around the room, like the ray of a lighthouse sweeping a familiar coast, searching for hidden defects.

From "The Chocolate War" by Robert Cormier

lighthouse

Example Sentences

Related Words