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Bilbao (hispane Bilbao, eŭske Bilbo) estas havenurbo en norda Hispanio apud Biskaja Golfo ĉe rivero Nervión. Ĉefurbo de Biskajo kaj plej granda urbo de Eŭskio.
Paere dimidium 2 155 546 incolarum Vasconiae in Magno Bilbao, scilicet in territorio urbis Bilbai, vivunt. E decem frequentissimis urbibus, sex partem formant Bilbainae conurbationis (Bilbaum, Baracaldo, Guecho, Portus Gallorum, Monasterium…