zero

zero
[ˈzɪərəʊ]
(pl. -os)
  1. no quantity or number; nought; the figure 0
    零，零数
    figures from zero to nine.
    从0到9的数字。
    you've left off a zero—it should be five hundred million.
    你漏掉了一个0——应该是5亿。
    ■a point on a scale or instrument from which a positive or negative quantity is reckoned
    （刻度表上的）零点，零位
    the gauge dropped to zero.
    量规下降至0刻度 。
    [as modifier]a zero rate of interest.
    零利率。
    ■the temperature corresponding to 0° on the Celsius scale (32° Fahrenheit), marking the freezing point of water
    （气温）摄氏零度（华氏32度）
    the temperature was below zero.
    气温在摄氏零度以下。
    ■[usu. as modifier](Linguistics)the absence of an actual word or morpheme to realize a syntactic or morphological phenomenon
    (语)零形态；无屈折
    the zero plural in ‘three sheep’.
    ‘three sheep’中sheep的复数无屈折变化。
    ■the lowest possible amount or level; nothing at all
    最低数量；最低水准；没有，全无
    I rated my chances as zero.
    我估计我的机会为零。
    ■short for zero hour
    zero hour 同
    ■(informal)a worthless or contemptibly undistinguished person
    (非正式)渺小的人；无用的人；无足轻重的人
    her husband is an absolute zero.
    她的丈夫绝对是个小人物。
(-oes, -oed)
[with obj.]
  1. adjust (an instrument) to zero
    把…调到零点（或零位）
    zero the counter when the tape has rewound.
    倒带时把计数器调至零位。
  2. set the sights of (a gun) for firing
    把（枪、炮、炮火等）对准目标； 向…集中火力；对准
语源
  1. early 17th cent.: from French zéro or Italian zero, via Old Spanish from Arabic ṣifr 'cipher'
继承用法
zero in
  1. take aim with a gun or missile
    把（枪、炮、导弹）对准目标瞄准
    jet fighters zeroed in on the rebels' positions.
    喷气战斗机将火力集中对准叛军阵地。
    ■focus one's attention
    集中注意力
    they zeroed in on the clues he gave away about.
    他们把注意力集中在他所泄露的线索上。
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