[{"Bold_text": "noun", "List Items": ["a substance, as a liquid or gas, that is capable of flowing and that changes its shape at a steady rate when acted upon by a force tending to change its shape."]}, {"Bold_text": "adjective", "List Items": ["pertaining to a substance that easily changes its shape; capable of flowing.", "consisting of or pertaining to fluids.", "changing readily; shifting; not fixed, stable, or rigid:fluid movements.", "convertible into cash:fluid assets."]}]