Definition of azulejo in English:
 azulejo
nounPlural azulejos ˌazjʊˈleɪhəʊˌaZHəˈlāˌhō
A kind of glazed coloured tile traditionally used in Spanish and Portuguese buildings.
 Example sentencesExamples
-  The sounds of children playing spill out onto the street from houses covered in elaborate patterns of azulejos (painted tile).
 -  Also unique to Portugal are the decorative tiles known as azulejos.
 -  The blue tiles called azulejos are used widely - as in most Portuguese cities - but they are, perhaps, most impressive in the Sao Bento station.
 -  This area holds one of the largest concentrations of my favorite thing about Lisbon: the decorative tiles (azulejo).
 -  Few things are as characteristic or expressive of Portuguese architecture as its painted ceramic tiles, or azulejos.
 -  The hallmark of Portuguese architecture are azulejos, glazed ceramic tiles that cover the facades and interiors of churches, government buildings, and private homes.
 
Origin
  
From Spanish, from azul 'blue'.