[{"Bold_text": "noun", "List Items": ["the act or process of expanding.", "the state or quality of being expanded.", "the amount or degree of expanding.", "an expanded, dilated, or enlarged portion or form of a thing:The present article is an expansion of one he wrote last year.", "anything spread out; expanse.", "Mathematics.the development at length of an expression indicated in a contracted form, asa2+ 2ab+b2for the expression (a+b)2.any mathematical series that converges to a function for specified values in the domain of the function, as 1 +x+x2+ … for 1/(1 ?x) whenx< 1.", "the development at length of an expression indicated in a contracted form, asa2+ 2ab+b2for the expression (a+b)2.", "any mathematical series that converges to a function for specified values in the domain of the function, as 1 +x+x2+ … for 1/(1 ?x) whenx< 1.", "Machinery.that part of the operation of an engine in which the volume of the working medium increases and its pressure decreases.", "an increase in economic and industrial activity ( contraction ).", "additional content for a video game, card game, board game, etc., that significantly expands or alters the way the game is played:I really improved my deck with cards from the latest expansion.You can play the stand-alone expansion without ever buying the original game."]}]