[{"Bold_text": "noun", "List Items": ["a box receptacle for holding sand , especially one large enough for children to play in.", "Computers.an environment in which software developers or editors can create and test new content, separate from other content in the project (often used attributively):sandbox web design;New features are tested and critiqued in the demo sandbox."]}, {"Bold_text": "adjective", "List Items": ["Digital Technology.noting or relating to a genre of video game with a nonlinear structure that allows players to roam freely."]}]