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

  • n. The cardinal number equal to 7 × 10.
  • n. A decade or the numbers from 70 to 79: They became grandparents in their seventies. The temperature hovered in the seventies.
  • n. The decade from 70 to 79 in a century.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The cardinal number occurring after sixty-nine and before seventy-one, represented in Roman numerals as LXX and in Arabic numerals as 70.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Seven times ten; one more than sixty-nine.
  • n. The sum of seven times ten; seventy units or objects.
  • n. A symbol representing seventy units, as 70, or lxx.

from The Century Dictionary and Cyclopedia

  • Seven times ten; one more than sixty-nine: a cardinal numeral.
  • n. The number which is made up of seven times ten.
  • n. A symbol representing this number, as 70, or LXX, or lxx.
  • n. to the Jewish sanhedrim;
  • n. to the body of disciples mentioned in Luke x. as appointed by Christ to preach the gospel and heal the sick;
  • n. to the body of scholars who, according to tradition, were the authors of the Septuagint: so called from their number seventy-two (see Septuagint);
  • n. to certain officials in the Mormon Church whose duty it is, under the direction of the Twelve Apostles, “to travel into all the world and preach the Gospel and administer its ordinances” (Mormon Catechism).

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

  • n. the cardinal number that is the product of ten and seven
  • adj. being ten more than sixty


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

Middle English, from Old English -seofontig (in hundseofontig, the decad seventy, seventy); see septm̥ in Indo-European roots.



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