What does quadrennium mean?

Definitions for quadrennium
kwɒˈdrɛn i əm; kwɒˈdrɛn i əqua·dren·ni·um

This dictionary definitions page includes all the possible meanings, example usage and translations of the word quadrennium.

Princeton's WordNet

  1. quadrenniumnoun

    a period of four years


  1. quadrenniumnoun

    a period of four years


  1. quadrennium

    A unit of time is any particular time interval, used as a standard way of measuring or expressing duration. The base unit of time in the International System of Units (SI) and by extension most of the Western world, is the second, defined as about 9 billion oscillations of the caesium atom. The exact modern SI definition is "[The second] is defined by taking the fixed numerical value of the cesium frequency, ΔνCs, the unperturbed ground-state hyperfine transition frequency of the cesium 133 atom, to be 9 192 631 770 when expressed in the unit Hz, which is equal to s−1."Historically, many units of time were defined by the movements of astronomical objects. Sun-based: the year was the time for the Earth to revolve around the Sun. Historical year-based units include the Olympiad (four years), the lustrum (five years), the indiction (15 years), the decade, the century, and the millennium. Moon-based: the month was based on the Moon's orbital period around the Earth. Earth-based: the time it took for the Earth to rotate on its own axis, as observed on a sundial. Units originally derived from this base include the week (seven days), and the fortnight (14 days). Subdivisions of the day include the hour (1/24 of a day), which was further subdivided into minutes and finally seconds. The second became the international standard unit (SI units) for science. Celestial sphere-based: as in sidereal time, where the apparent movement of the stars and constellations across the sky is used to calculate the length of a year.These units do not have a consistent relationship with each other and require intercalation. For example, the year cannot be divided into twelve 28-day months since 12 times 28 is 336, well short of 365. The lunar month (as defined by the moon's rotation) is not 28 days but 28.3 days. The year, defined in the Gregorian calendar as 365.2425 days has to be adjusted with leap days and leap seconds. Consequently, these units are now all defined for scientific purposes as multiples of seconds. Units of time based on orders of magnitude of the second include the nanosecond and the millisecond.


  1. quadrennium

    A quadrennium is a period of four years. The term is commonly used to represent the four-year term of office for some positions, such as the presidency in certain countries. It is derived from Latin words "quadri-", meaning four, and "-ennium", meaning year.

Webster Dictionary

  1. Quadrenniumnoun

    a space or period of four years

  2. Etymology: [NL. See Quadrennial.]


  1. Quadrennium

    A quadrennium is a period of 4 years, most commonly used in reference to the 4 year period between each Olympic Games. Also used in reference to the 4 year interval between leap years, for example when wishing friends and family a "Happy quadrennium" on February 29.

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How to pronounce quadrennium?

How to say quadrennium in sign language?


  1. Chaldean Numerology

    The numerical value of quadrennium in Chaldean Numerology is: 4

  2. Pythagorean Numerology

    The numerical value of quadrennium in Pythagorean Numerology is: 2


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"quadrennium." Definitions.net. STANDS4 LLC, 2024. Web. 17 Jul 2024. <https://www.definitions.net/definition/quadrennium>.

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