thirteen

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˌθɜːrˈtiːn/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/ˈθɝˈtin/ ,USA pronunciation: respelling(thûrtēn)


WordReference Random House Learner's Dictionary of American English © 2026
thir•teen /ˈθɜrˈtin/USA pronunciation   n. [countable]
  1. a cardinal number, 10 plus 3.
  2. a symbol for this number, as 13 or XIII.
  3. a set of this many persons or things.

adj. [before a noun]
  1. amounting to 13 in number.
thir•teenth, adj. 

WordReference Random House Unabridged Dictionary of American English © 2026
thir•teen  (thûrtēn),USA pronunciation n. 
  1. a cardinal number, 10 plus 3.
  2. a symbol for this number, as 13 or XIII.
  3. a set of this many persons or things.

adj. 
  1. amounting to 13 in number.
  • bef. 900; late Middle English thirttene, variant of Middle English thrittene, Old English thrēotēne; cognate with Dutch dertien, German dreizehn, Old Norse threttān. See three, -teen

Collins Concise English Dictionary © HarperCollins Publishers::
thirteen /ˈθɜːˈtiːn/ n
  1. the cardinal number that is the sum of ten and three and is a prime number See also number
  2. a numeral, 13, XIII, etc, representing this number
  3. something represented by, representing, or consisting of 13 units
determiner
    • amounting to thirteen
    • (as pronoun): thirteen of them fell
Etymology: Old English threotēne; see three, -teen
'thirteen' also found in these entries (note: many are not synonyms or translations):
Collocations: are thirteen [pieces, parts, chapters], is thirteen years old, will be thirteen (years old) (tomorrow), more...

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