I don't think the Romans had a word for "lighthouse" but I suppose the phrases "Turris Lucis" or "Domus Lucis" would suffice.
The first means "Tower of Light" and the latter "House of Light."
the oldest lighthouse is the lighthouse of Alexandria
a lighthouse keeper.
the shortest lighthouse is in Oregon the cape mears lighthouse
The possessive form of the noun lighthouse is lighthouse's.Example: We were so glad to see the lighthouse's beacon.
a lighthouse keeper
Man the lighthouse.
its not the concord point lighthouse its the gibralter point lighthouse
It is a lighthouse
It is an old lighthouse
lighthouse = far
lighthouse
the coastal lighthouse