nought

• 数学中加在另一个数上不改变其值的元素，即零；也泛指没有、不存在或微不足道的人或事物。

A mathematical element that when added to another number yields the same number, commonly known as zero.

1. ZeroA1formalbritish

   The numerical value representing nothing; the number 0.

   零

   • The temperature dropped to nought degrees last night.
   • He scored nought on the test.
   • The number nought is the additive identity in mathematics.

   同义词ciphernaughtnilnothingzerozilchzip

• 英式英语中表示数字零（0）的说法；常用于电话号码、小数、计数和测量中。

The cardinal numeral representing zero (0), predominantly used in British, Australian, and Commonwealth English to denote the digit zero in telephone numbers, decimal fractions, scores, and measurements; derived from Old English 'nāwiht' (nothing). Also functions as a noun (denoting the symbol or concept of zero), determiner (indicating null quantity), and pronoun (referring to absent items).

1. Cardinal numeral: the digit 0 (British/Commonwealth)B1formalbritish

   Used to denote the digit zero, especially when reading out telephone numbers, decimal fractions, measurements, and scores; serves as the standard term for 0 in British and Commonwealth English, distinct from 'zero' which is more common in scientific or international contexts.

   基数词：数字0（英式/英联邦用法）

   • My phone number ends in double nought.
   • The temperature was minus three point nought five degrees.
   • The team lost three nought to two.
   • He weighed the sample as one point five nought grams.
   • The clock struck twelve, but the digital display read zero nought zero zero.

2. Noun: the symbol or concept of zeroB1formalbritish

   A noun referring to the digit 0 or the concept of nothingness; commonly used in mathematics, computing, and everyday British English to denote a null value, absence, or a placeholder in numerical sequences.

   名词：零的符号或概念

   • Write a nought before the decimal point for clarity.
   • The binary code consists of ones and noughts.
   • He scored a nought in the first half.
   • In British English, a nought is often used instead of zero in casual contexts.
   • The sequence contains three consecutive noughts.

3. Determiner/Adjective: amounting to zeroB2informalbritish

   Used attributively before a noun to indicate that the quantity or number is zero; less common than 'zero' or 'no', but still valid in British English to specify null quantity.

   限定词/形容词：数量为零的

   • They recorded nought incidents during the trial.
   • The report shows nought progress on the key metrics.
   • She has nought experience in that specific field.
   • Nought emissions were detected in the final analysis.
   • The committee issued nought warnings this quarter.

4. Pronoun: zero people or things (null reference)B2informalbritish

   Used as a pronoun to refer to zero previously mentioned or understood items; takes singular or plural verb agreement depending on context; emphasizes complete absence in British English contexts.

   代词：零个人或事物

   • Fifty applications were received, but nought were accepted.
   • We expected ten guests; nought showed up.
   • How many errors did you find? — Nought.
   • Several hypotheses were tested, but nought proved viable.
   • Of the samples collected, nought contained the target substance.