売る (うる) means 'to sell.' This transitive verb refers to the action of exchanging goods or services for money. The item being sold is marked with the particle 'を'. For example, '本を売ります' (Hon o urimasu) means 'I sell books.'

売(う)るは「売(う)る」という意味(いみ)です。物(もの)をお金(かね)と交換(こうかん)するときに使(つか)います。「本(ほん)を売(う)ります」