Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The cardinal number equal to 3 × 10.
  • noun A decade or the numbers from 30 to 39.
  • noun The decade from 30 to 39 in a century.
  • noun An indication of the end of a news story, usually written 30.
  • noun Sports The second point that is scored by one side in tennis.

from The Century Dictionary.

  • noun In printing and telegraphy, the last sheet, word, or line of copy or of a despatch.
  • Being thrice ten, three times ten, or twenty and ten.
  • noun The number which consists of three times ten.
  • noun A symbol representing thirty units, as 30, XXX, or xxx.

from the GNU version of the Collaborative International Dictionary of English.

  • noun The sum of three tens, or twenty and ten; thirty units or objects.
  • noun A symbol expressing thirty, as 30, or XXX.
  • adjective Being three times ten; consisting of one more than twenty-nine; twenty and ten.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun The cardinal number occurring after twenty-nine and before thirty-one, represented in Arabic numerals as 30.
  • noun slang A rack of thirty beers.

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

  • noun the cardinal number that is the product of ten and three
  • adjective being ten more than twenty

Etymologies

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

[Middle English thritty, thirty, from Old English thrītig; see trei- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

Old English þritiġ

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Examples

  • I remember when I first heard the term thirty-five years ago when we were attending a

    About.com Marriage 2009

  • At last, after what he called thirty years of slavery, he was able to resign his post of critic.

    The World's Great Men of Music Brower, Harriette 1922

  • The Richelieu Steamboat Company was {149} formed in 1845, and took its other title thirty years later, when it made its first great 'merger.'

    All Afloat A Chronicle of Craft and Waterways William Charles Henry Wood 1905

  • At last, after what he called thirty years of slavery, he was able to resign his post of critic.

    The World's Great Men of Music Story-Lives of Master Musicians Harriette Brower 1898

  • Mother Mayberry from Providence, who is the grand old woman of the whole valley, having established her claim to the title thirty years ago by taking up her dead doctor husband's practice and "riding saddlebags to suffering ever since," as she puts it, broke the feminine ice by rising from her seat by the side of one of the entranced Magnates, -- who had been so delighted with her and her philosophies that he could hardly do his dinner justice, -- and addressing the rally in her wonderful old voice with her white curls flying and her cheeks as pink as a girl's.

    The Tinder-Box Maria Thompson Daviess 1898

  • Anglican bishop: Church of England likely gone in thirty years

    Insight Scoop | The Ignatius Press Blog: 2009

  • | Anglican bishop: Church of England likely gone in thirty years »

    Sinners, Apostles, Martyrs: On the Solemnity of Sts. Peter & Paul 2009

  • Listed below are links to weblogs that reference Anglican bishop: Church of England likely gone in thirty years:

    Anglican bishop: Church of England likely gone in thirty years 2009

  • So how exactly did walt-the-ought run down the middle of the freeway, live-streaming himself, within thirty seconds of the vote?

    FRIDAY MIDNIGHT FIVE STARS • by David J. Rank 2009

  • (Given the various claims to the tune of “lose thirty pounds in thirty days,” one might easily be forgiven for not even realizing that there even were advertising standards.)

    2009 April | Dr Vino's wine blog 2009

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