Etymology

Sydney

Syd·ney
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Today it means: A major port city, the state capital of New South Wales, Australia, and the most populous city in Australia. Full definition →

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The story

For the surname and given name, see Sidney. The cities in Australia and Canada are named after British politician Thomas Townshend, 1st Viscount Sydney (1733–1800).

Etymology from Wiktionary, CC BY-SA 4.0.