noun🔗ShareSudden fatigue as a result of glycogen depletion from not having taken in enough nutrition."After the long hike, the hiker experienced a knock from lack of energy. "physiologymedicineconditionbodyenergyfoodessentialtoeicChat 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."soundessentialtoeicChat with AIVocabulary GamePractice Reading
noun🔗ShareA sharp impact."He took a knock on the head."actionsoundessentialtoeicChat with AIVocabulary GamePractice Reading
noun🔗ShareCriticism."The teacher's knock on John's work was justified; he hadn't completed his homework. "attitudecommunicationessentialtoeicChat 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 engine's knock was a worrying sound, signaling possible preignition problems. "technicalsoundenergyvehiclemachinephysicsindustryfuelessentialtoeicChat with AIVocabulary GamePractice Reading
noun🔗ShareA batsman's innings."He played a slow but sure knock of 35."sportentertainmentessentialtoeicChat with AIVocabulary GamePractice Reading
verb🔗ShareTo strike for admittance; to rap upon, as a door."The student knocked on the classroom door before entering. "actionsoundcommunicationessentialtoeicChat with AIVocabulary GamePractice Reading
verb🔗ShareTo criticize verbally; to denigrate; to undervalue."Don’t knock it until you’ve tried it."attitudecommunicationlanguageessentialtoeicChat with AIVocabulary GamePractice Reading
verb🔗ShareTo kick a ball towards another player; to pass."The soccer player knocked the ball to his teammate. "sportessentialtoeicChat with AIVocabulary GamePractice Reading
verb🔗ShareTo impress forcibly or strongly; to astonish; to move to admiration or applause."The comedian's jokes really knocked the audience. "sensationemotionentertainmentessentialtoeicChat with AIVocabulary GamePractice Reading
verb🔗ShareTo bump or impact."I accidentally knocked my drink off the bar."actionsoundessentialtoeicChat 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."actionsoundcommunicationessentialtoeicChat with AIVocabulary GamePractice Reading
