[{"Bold_text": "noun", "List Items": ["a playing card or die marked with or having the value indicated by a single spot:He dealt me four aces in the first hand.", "a single spot or mark on a playing card or die.", "(in tennis, badminton, handball, etc.)Also calledservice ace.a placement made on a service.any placement.a serve that the opponent fails to .the point thus scored.", "Also calledservice ace.a placement made on a service.", "any placement.", "a serve that the opponent fails to .", "the point thus scored.", "a fighter pilot credited with destroying a prescribed number or more of enemy aircraft, usually five, in combat.", "a very skilled person; expert ; adept :an ace at tap dancing.", "Slang.a one-dollar bill.", "Slang.a close friend.", "Golf.Also called hole in one hole in one.a shot in which the ball is driven from the tee into the hole in one stroke:He hit a 225-yard ace on the first hole.a score of one stroke made on such a shot:to card an ace.", "Also called hole in one hole in one.a shot in which the ball is driven from the tee into the hole in one stroke:He hit a 225-yard ace on the first hole.", "a score of one stroke made on such a shot:to card an ace.", "Slang.a barbiturate or amphetamine capsule or pill.", "a very small quantity, amount, or degree; a particle:not worth an ace.", "Slang.a grade of A; the highest grade or score."]}, {"Bold_text": "verb (used with object)", "List Items": ["(in tennis, badminton, handball, etc.) to win a point against (one's opponent) by an ace.", "Golf.to make an ace on (a hole).", "Slang.to cheat, defraud, or take advantage of (often followed byout):to be aced out of one's inheritance;friend who aced me out of a good job.", "Slang.to receive a grade of A, as on a test or in a course (sometimes followed byout).to complete easily and successfully:He aced every physical fitness test they gave him.", "to receive a grade of A, as on a test or in a course (sometimes followed byout).", "to complete easily and successfully:He aced every physical fitness test they gave him."]}, {"Bold_text": "adjective", "List Items": ["Sometimesaces. excellent ; first-rate ; outstanding ."]}, {"Bold_text": "verb phrase", "List Items": ["Slang.to accomplish something with complete success:a champion who could ace it every time."]}, {"Bold_text": "noun", "List Items": ["a person who experiences little or no sexual attraction to other people; asexual :She's an ace, but she's had a couple of romantic relationships."]}, {"Bold_text": "adjective", "List Items": ["experiencing little or no sexual attraction to other people:As someone who identifies as ace, this article gave me much food for thought."]}, {"Bold_text": "abbreviation for", "List Items": ["American Council on Education.", "Army Corps of Engineers."]}]