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1. verb To slap one's (usually) raised hand with someone's else's own, as in a show of congratulation or celebration. I hear you aced your final exams! High five, man!
2. noun The act of slapping hands with someone in this manner. I hear you aced your final exams! Give me a high five, man!
ˌhigh ˈfive(especially American English) an action to celebrate victory or to express happiness in which two people raise one arm each and hit their open hands together: Way to go! High five! ♢ Her teammates cheered and gave her a high five.
1. n. a greeting where the palm of the hand is raised and slapped against another person’s palm similarly raised. (Compare this with low five.) They exchanged a high five and went on with the show.
2. tv. & in. to greet someone as described in sense 1 They high fived and went off together.
A congratulatory slap in which one person slaps the other’s palm as it is held up. Originating in sports in the late 1900s, it was soon extended to other circumstances. For example, “That was a great speech; he deserves a high five.” The expression also has a verbal form, to high-five, simply meaning to give someone a high five.