The capital of Ireland is Dublin, but there are many synonyms or alternative names for the city. Some of these include Baile Átha Cliath, the Irish Gaelic name for Dublin, which translates to "Town of the Hurdled Ford." Other synonyms for the city include "The Fair City," "The City of a Thousand Welcomes," and "The Metropolis." Additionally, historical names for Dublin include "Dubhlinn" and "Ath Cliath." Each of these names offers a unique perspective on the city, highlighting its history, culture, and significance as the capital of Ireland.