[{"word":"expansions","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"The act or process of expanding.","synonyms":[],"antonyms":[],"example":"The expansion of metals and plastics in response to heat is well understood."},{"definition":"The fractional change in unit length per unit length per unit temperature change.","synonyms":[],"antonyms":[]},{"definition":"A new addition.","synonyms":[],"antonyms":[],"example":"My new office is in the expansion behind the main building."},{"definition":"A product to be used with a previous product.","synonyms":[],"antonyms":[],"example":"This expansion requires the original game board."},{"definition":"That which is expanded; expanse; extended surface.","synonyms":[],"antonyms":[]},{"definition":"(steam engines) The operation of steam in a cylinder after its communication with the boiler has been cut off, by which it continues to exert pressure upon the moving piston.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":["contraction","shrinkage"]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/expansion","https://en.wiktionary.org/wiki/expansions"]}]