The noun 'domino' is a singular, common, concrete noun; a word for a thing.

Yes, the noun "lighthouse" is a concrete noun. Concrete nouns refer to tangible, physical objects that can be perceived by the senses. As a physical structure made of materials like bricks and metal, a lighthouse falls under the category of concrete nouns.

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The fourth tallest building in the world as of this year statistics is the CN Tower under the Concrete Tower Category that has the height of 553.3m.