[{"Bold_text": "noun", "List Items": ["a cardinal number, ten times four.", "a symbol for this number, as 40 or XL or XXXX.", "a set of this many persons or things.", "forties,the numbers, years, degrees, or the like, from 40 through 49, as in referring to numbered streets, indicating the years of a lifetime or of a century, or degrees of temperature:His office is in the West Forties. Her parents are in their forties. The temperature will be in the forties."]}, {"Bold_text": "adjective", "List Items": ["amounting to 40 in number."]}]