Fifteen meaning

fĭf-tēn
The cardinal number equal to 14 + 1.
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The 15th in a set or sequence.
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Totaling five more than ten.
adjective
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The cardinal number between fourteen and sixteen; 15; XV.
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Origin of fifteen

  • Middle English fiftene from Old English fīftēne penkwe in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Middle English, from Old English fīftīene, fīftēne, from Proto-Germanic *fimftehun. Compare West Frisian fyftjin, Dutch vijftien, German fünfzehn, Danish femten.

    From Wiktionary