countdown

count·down

C0684000 (kount′doun′)n.1. The counting backward aloud from an arbitrary starting number to indicate the time remaining before an event or operation, such as the launching of a missile or space vehicle.2. The checks and preparations carried out during this activity.

countdown

(ˈkaʊntˌdaʊn) nthe act of counting backwards to time a critical operation exactly, such as the launching of a rocket or the detonation of explosivesvb (intr, adverb) (Mathematics) to count numbers backwards towards zero, esp in timing such a critical operation

count•down

(ˈkaʊntˌdaʊn)

n. 1. the backward counting from the initiation of a project, as a rocket launching, with the moment of firing designated as zero. 2. the final preparations made during this period. 3. any period of increased activity before a deadline. [1950–55]

countdown

The step-by-step process leading to initiation of missile testing, launching, and firing. It is performed in accordance with a pre-designated time schedule.

Thesaurus

Noun

1.

countdown - counting backward from an arbitrary number to indicate the time remaining before some event (such as launching a space vehicle)counting, enumeration, numeration, count, reckoning, tally - the act of counting; reciting numbers in ascending order; "the counting continued for several hours"

Translations

倒数读秒倒计数

count²

(kaunt) verb1. to name the numbers up to. Count (up to) ten. 數數兒 （按顺序的）数数 2. to calculate using numbers. Count (up) the number of pages; Count how many people there are; There were six people present, not counting the chairman. 計數 计数3. to be important or have an effect or value. What he says doesn't count; All these essays count towards my final mark. 重要，有影響或價值 有价值，有重要意义 4. to consider. Count yourself lucky to be here. 把...視為 把...看作 noun1. an act of numbering. They took a count of how many people attended. 計數 计数2. a charge brought against a prisoner etc. She faces three counts of theft. 罪狀 罪状 adjectivesee countable. ˈcountable adjective1. capable of being numbered. Millionths of a second are countable only on very complicated instruments. 可計數的 可计数的2. (negative uncountable. also count) (of a noun) capable of forming a plural and using the definite or indefinite article: Table is a count(able) noun, but milk is an uncountable noun. 可數的 可数的ˈcounter noun a token used in numbering or playing certain games; counters for playing ludo etc. 數數兒或遊戲的籌碼 筹码ˈcountless adjective very many. Countless pebbles. 不計其數的 无计其数的ˈcountdown noun (used originally of a rocket) a counting backwards to check the time remaining until the beginning of an event, regarded as zero. It's five minutes to countdown. 倒數計時 倒数读秒，倒计数 count on to rely on (a person or happening). I'm counting on you to persuade her. 依靠 依靠out for the count1. (of a boxer) still not standing after the count of ten. 拳擊比賽被擊倒後裁判數到十仍未爬起，被判失敗 拳击比赛被击倒后裁判计时十秒钟仍未爬起，被判失败 2. exhausted; asleep. He was out for the count for several hours after his long walk. 累垮，睡著了 睡得极熟的