from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The cardinal number equal to the sum of 15 + 1.
  • n. The 16th in a set or sequence.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The cardinal number occurring after fifteen and before seventeen, represented in Arabic numerals as 16 and in Roman numerals as XVI.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Six and ten; consisting of six and ten; fifteen and one more.
  • n. The number greater by a unit than fifteen; the sum of ten and six; sixteen units or objects.
  • n. A symbol representing sixteen units, as 16, or xvi.

from The Century Dictionary and Cyclopedia

  • Being the sum of six and ten; consisting of one more than fifteen: a cardinal numeral.
  • n. Then umber made up of six and ten; four times four.
  • n. A symbol representing this number, as 16, or XVI, or xvi.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. being one more than fifteen
  • n. the cardinal number that is the sum of fifteen and one


Middle English sixtene, from Old English sixtȳne; see s(w)eks in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English, from Old English siextīene, sixtēne, sixtyne, from Proto-Germanic *sehstehun. Compare West Frisian sechstjin, Dutch zestien, German sechzehn, Danish seksten. (Wiktionary)



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