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To strike the palms of the hands together with a sudden explosive sound, as in applauding.
(verb-intransitive)
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To come together suddenly with a sharp sound.
(verb-intransitive)
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To strike together with a sharp sound, as one hard surface on another: clapped a book on the desk.
(verb-transitive)
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To strike (the hands) together with an abrupt, loud sound, usually repeatedly: clapped hands in time to the music.
(verb-transitive)
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To strike lightly but firmly with the open hand, as in greeting: clapped me on the shoulder.
(verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.