seventy

/'sevnti/
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seventy

A child counts seventy colorful marbles spread on a table.

Definition

  1. Cardinal Number:

    • The natural number following sixty-nine and preceding seventy-one; equivalent to ten multiplied by seven (70).

  2. Noun:

    • The symbol, word, or group representing this number (e.g., "seventy," "70," "LXX").
    • (plural, the seventies) The decade from 70 to 79 in a century, especially the 20th century (1970-1979).
    • (plural, the seventies) The period of life between the ages of 70 and 79.

  3. Adjective:

    • Amounting to seventy in number. Example: "seventy years"
Examples of Usage

  • As a Cardinal Number:

    • There are seventy students in the auditorium.
    • Seventy minus ten equals sixty.

  • As a Noun (Symbol/Word):

    • "Seventy" is written with seven letters.
    • The Roman numeral for seventy is LXX.

  • As a Noun (Decade/Age Range):

    • My parents were married in the seventies.
    • Her grandfather is in his seventies and still very active.

  • As an Adjective:

    • The book has seventy pages.
    • She received seventy replies to her survey.
Advanced Usage
  • "The roaring seventies": A phrase sometimes used to describe the 1870s or 1970s, highlighting their distinctive social or economic character.
  • "Seventy times seven": A biblical phrase (Matthew 18:22) meaning a very large, essentially unlimited number, often used to imply boundless forgiveness.
Variants and Related Words
  • Seventieth (adj., n.): Constituting number seventy in a sequence; the ordinal form (70th).
    • This is the seventieth anniversary of the event.
  • Seventyfold (adj., adv.): Seventy times as much or as many.
    • The investment yielded a seventyfold return.
Synonyms
  • Three score and ten: An archaic or literary term for seventy (a "score" is twenty).
  • LXX: The Roman numeral representation.
Related Phrases
  • Seventy-something (adj., n., informal): An unspecified number between seventy and seventy-nine; a person aged between 70 and 79.
    • A seventy-something retiree.
  • The seventy-seven (n.): Can refer to a specific group of seventy-seven, such as the Group of 77 (G77) in the United Nations.
seventy

A child counts seventy colorful marbles spread on a table.

Adjective
  1. being ten more than sixty
Noun
  1. the cardinal number that is the product of ten and seven

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