Zero

Adjective

  • (meteorology) Of horizontal visibility, limited to 165 feet (50.3 meters) or less.
  • (meteorology) Of a cloud ceiling, limiting vision to 50 feet (15 meters) or less.
  • (informal, used with noun) none

    "She showed zero respect."

  • (linguistics) Present at an abstract level, but not realized in the data.

    "The stem of "kobieta" with the zero ending is "kobiet"."

Noun

  • ​ (mathematics, algebra) The additive identity element of a monoid or greater algebraic structure, particularly a group or ring.

    "Since a commutative zero is the inverse of any additive identity, it must be unique when it exists."

  • (slang) A person of little or no importance.

    "They rudely treated him like a zero."

  • (finance) A security which has a zero coupon (paying no periodic interest).

    "The takeovers were financed by issuing zeroes."

  • The numeric symbol that represents the cardinal number zero.

    "The zero sign in American Sign Language is considered rude in some cultures."

  • (informal, uncountable) Nothing, or none.

    "He knows zero about humour."

  • The point on a scale at which numbering or measurement originates.

    "The temperature outside is ten degrees below zero."

  • (mathematics) A value of the independent variables of a function, for which the function is equal to zero.

    "The nontrivial zeros of the Riemann zeta function may all lie on the critical line."

  • ​ (mathematics, algebra) The additive identity element of a monoid or greater algebraic structure, particularly a group or ring.

    "The quotient ring over a maximal ideal is a field with a single zero element."

  • A setting of calibrated instruments such as a firearm.
  • The numeric symbol that represents the cardinal number zero.

    "Write 0.0 to indicate a floating point number rather than the integer zero."

  • (informal, uncountable) Nothing, or none.

    "The shipment was lost, so they had zero in stock."

  • The value of a magnitude corresponding to the cardinal number zero.

    "The electromagnetic field does not drop all of the way to zero before a reversal."

  • (mathematics) A value of the independent variables of a function, for which the function is equal to zero.

    "The derivative of a continuous, differentiable function that twice crosses the axis must have a zero."

  • ​ (mathematics, algebra) The additive identity element of a monoid or greater algebraic structure, particularly a group or ring.

    "The zero (of a ring or field) has the property that the product of the zero with any element yields the zero."

  • (military) A Mitsubishi A6M Zero, a long range fighter aircraft operated by the Japanese Navy Air Service from 1940 to 1945.
  • The numeric symbol that represents the cardinal number zero.

    "In unary and k-adic notation in general, zero is the empty string."

  • The digit 0 in the decimal, binary, and all other base numbering systems.

    "One million has six zeroes."

  • (informal, uncountable) Nothing, or none.

    "In the end, all of our hard work amounted to zero."

  • (mathematics) A value of the independent variables of a function, for which the function is equal to zero.

    "The zeroes of a polynomial are its roots by the fundamental theorem of algebra."

Numeral

  • (cardinal) The cardinal number occurring before one and that denotes no quantity or amount at all, represented in Arabic numerals as 0.

    "A cheque for zero dollars and zero cents crashed the computers on division by zero."

  • "The conductor waited until the passenger count was zero."

Verb

  • (transitive, computing) To change a memory location or range to values of zero; to set a variable in a computer program to zero.

    "Results were inconsistent because an array wasn’t zeroed during initialization."

  • (intransitive) To disappear
  • (transitive) To set a measuring instrument to zero; to calibrate instrument scale to valid zero.

    "Zero the fluorometer with the same solvent used in extraction."

  • (transitive) To eliminate; to delete; to overwrite with zeros.
  • (transitive) To cause or set some value or amount to be zero.

    "They tried to zero the budget by the end of the quarter."

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