[{"Bold_text": "noun", "List Items": ["Baseball.the area between bases base basis which a base runner base runnermust keep when running from one base another.", "Tennis.the line each end of a tennis court, parallel to the net, that marks the in-bounds limit of play.", "(in perspective drawing) a horizontal line the immediate foreground formed by the intersection of the ground plane and the picture plane.", "a basic standard or level; guideline:to establish a baseline for future studies.", "a specific value or values that can serve as a comparison or control.", "Typography.the imaginary line which the bottoms of primary letters align.", "Surveying.triangulation1", "Electronics.a horizontal or vertical line on the face of a cathode-ray tube by the sweep of the scanning dot.", "Naval Architecture.a line the body plan or sheer plan of a hull, representing a horizontal reference plane for vertical dimensions."]}, {"Bold_text": "adjective", "List Items": ["basic or essential."]}]