Pronunciation

• (UK) IPA ^(key): /ˈmɛtrəʊ/Category:Entries with IPA pronunciation
• (US) IPA ^(key): /ˈmɛtroʊ/Category:Entries with IPA pronunciation

• Audio (US)

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  Category:Entries with audio pronunciation

Noun

1. (countable)Category:Countable nouns A metro is an underground railway system.
   • Synonyms: subway and tube
2. (countable)Category:Countable nouns A metro is a train that runs on a underground railway system.