[{"word":"knife-edge","phonetics":[],"meanings":[{"partOfSpeech":"noun","definitions":[{"definition":"A piece of steel sharpened to an acute edge or angle, and resting on a smooth surface, serving as the axis of motion of a pendulum, scale beam, or other piece required to oscillate with the least possible friction.","synonyms":[],"antonyms":[]},{"definition":"A precarious balance that could be upset by a very small force in either direction.","synonyms":[],"antonyms":[],"example":"The game was on a knife-edge."}],"synonyms":[],"antonyms":[]}],"license":{"name":"CC BY-SA 3.0","url":"https://creativecommons.org/licenses/by-sa/3.0"},"sourceUrls":["https://en.wiktionary.org/wiki/knife-edge"]}]