(uncountable) The act or process by which something is built; construction. Synonym: construction The building of the bridge will be completed in a couple of weeks. (countable) A closed structure with walls and a roof. Synonyms: edifice; see also Thesaurus:building My sister lives in that apartment building.
形容詞 pop-up (not comparable) Coming into view suddenly from a concealed position. I packed a pop-up hamper in my suitcase. Opening out to form a three-dimensional structure when the page of a book is opened.