noun🔗ShareSudden fatigue as a result of glycogen depletion from not having taken in enough nutrition."After skipping lunch, the sudden knocks hit Maria hard during her afternoon soccer practice, forcing her to sit out. "physiologymedicinefoodenergysensationconditionChat with AIVocabulary GamePractice Reading
noun🔗ShareAn abrupt rapping sound, as from an impact of a hard object against wood."I heard a knock on my door."soundChat with AIVocabulary GamePractice Reading
noun🔗ShareA sharp impact."He took a knock on the head."soundactionChat with AIVocabulary GamePractice Reading
noun🔗ShareCriticism."The new manager faced a lot of knocks from the team about his inexperienced leadership. "attitudecommunicationChat with AIVocabulary GamePractice Reading
noun🔗SharePreignition, a type of abnormal combustion occurring in spark ignition engines caused by self-ignition; also, the characteristic knocking sound associated with it."The old car's engine developed bad knocks, especially when going uphill. "technicalsoundenergyvehiclemachinephysicsfuelChat with AIVocabulary GamePractice Reading
noun🔗ShareA batsman's innings."He played a slow but sure knock of 35."sportChat with AIVocabulary GamePractice Reading
verb🔗ShareTo strike for admittance; to rap upon, as a door."She knocks on the front door before entering her friend's house. "actionsoundcommunicationChat with AIVocabulary GamePractice Reading
verb🔗ShareTo criticize verbally; to denigrate; to undervalue."Don’t knock it until you’ve tried it."attitudecommunicationlanguagewordactionnegativeChat with AIVocabulary GamePractice Reading
verb🔗ShareTo kick a ball towards another player; to pass."He knocks the ball to his teammate, who then scores a goal. "sportactionChat with AIVocabulary GamePractice Reading
verb🔗ShareTo impress forcibly or strongly; to astonish; to move to admiration or applause."Her amazing piano performance really knocks you out with its skill and emotion. "entertainmentactionachievementstyleChat with AIVocabulary GamePractice Reading
verb🔗ShareTo bump or impact."I accidentally knocked my drink off the bar."actionsoundChat with AIVocabulary GamePractice Reading
verb🔗ShareTo rap one's knuckles against something, especially wood."Knock on the door and find out if they’re home."actionsoundcommunicationChat with AIVocabulary GamePractice Reading