[{"word":"accelerations","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration.","synonyms":[],"antonyms":[],"example":"a falling body moves toward the earth with an acceleration of velocity"},{"definition":"The amount by which a speed or velocity increases (and so a scalar quantity or a vector quantity).","synonyms":[],"antonyms":[],"example":"The boosters produce an acceleration of 20 metres per second per second."},{"definition":"The change of velocity with respect to time (can include deceleration or changing direction).","synonyms":[],"antonyms":[]},{"definition":"The advancement of students at a rate that places them ahead of where they would be in the regular school curriculum.","synonyms":[],"antonyms":[]}],"synonyms":[],"antonyms":["deceleration","retardation"]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/acceleration","https://en.wiktionary.org/wiki/accelerations"]}]