[{"Bold_text": "noun", "List Items": ["a space entirely devoid of matter.", "an enclosed space from which matter, especially air, has been partially removed so that the matter or gas remaining in the space exerts less pressure than the atmosphere ( plenum ).", "the state or degree of exhaustion in such an enclosed space.", "a space not filled or occupied; emptiness ; void :The loss left a vacuum in his heart.", "a vacuum cleaner vacuum cleaneror sweeper.", "Physics.a state of lowest energy in a quantum field theory."]}, {"Bold_text": "adjective", "List Items": ["of, pertaining to, employing, or producing a vacuum.", "(of a hollow container) partly exhausted of gas or air.", "pertaining to a device or process that makes use of a vacuum to accomplish a desired task.", "noting or pertaining to canning or packaging in which air is removed from the container to prevent deterioration of the contents."]}, {"Bold_text": "verb (used with object)", "List Items": ["to use a vacuum cleaner vacuum cleaneron; clean with a vacuum cleaner vacuum cleaner:to vacuum rugs.", "to treat with any vacuum device, as a vacuum drier."]}, {"Bold_text": "verb (used without object)", "List Items": ["to use a vacuum cleaner vacuum cleaner:to vacuum in the dining room."]}]