countdown

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 [ˈkaʊntdaʊn]



WordReference Random House Learner's Dictionary of American English © 2019
count•down /ˈkaʊntˌdaʊn/USA pronunciation   n. [countable]
  1. the backward counting from the starting point of a rocket launching with the moment of firing given as zero:The countdown of the launching was halted just before zero because of a faulty coupling.

WordReference Random House Unabridged Dictionary of American English © 2019
count•down  (kountdoun′),USA pronunciation n. 
  1. the backward counting in fixed time units 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. a period of increasing activity, tension, or anxiety, as before a deadline.
  • noun, nominal use of verb, verbal phrase count down 1950–55, American.

WordReference Random House Learner's Dictionary of American English © 2019
count1 /kaʊnt/USA pronunciation   v. 
  1. to check over (objects) one by one to determine the total number:[+ object]We counted all the towels in the rooms.
  2. to list or name the numerals up to: [~ (+ up) + to + a number] :Close your eyes and count (up) to ten.[+ object (+ up) + to + a number]He counted the numbers (up) to fifty in Swahili.
  3. [not: be + ~-ing;  ~ + object] to include;
    take into account: Count her among the chosen.
  4. [not: be + ~-ing;  no object] to be worth something;have value;matter:Every bit of help counts.[+ as + object]The computer doesn't count as office furniture.[+ for + object]His twenty years of service should count for something.
  5. to consider or regard: [+ object + adjective]counted himself lucky.[+ object + among + object]counted among the greatest minds of the century.
  6. count against, [+ against + object] to cause trouble for;
    work against:If I revealed my true feelings, it would count against me.
  7. count down, [no object] to count backward from a number to zero:At the launch pad they counted down from ten to zero, ignition, and lift-off.
  8. count in, [+ object + in] to include:Free tickets? Count me in!
  9. count on or upon, [+ on/upon + object] to depend or rely on:We're counting on you to be there.
  10. count out,
    • Sportto declare (a boxer) the loser in a bout because of inability to stand up before the referee has counted to 10: [+ object + out]They counted the champion out.[+ out + object]The referee counted out the champion.
    • [+ object + out] to exclude;
      leave (something) out;
      keep (someone) out or not involved:Swimming in the Moscow River on New Year's Day? Count me out!
    • to count and apportion or give out: [+ out + object]The girls counted out their money in little piles.[+ object + out]We counted the money out.
  11. count up, to add up;
    figure a total of by counting: [+ up + object]I counted up the hours I had already spent and groaned.[+ object + up]Count today's hours up and add them to the total.

n. 
  1. the act of counting;
    reckoning;
    calculation:[countable]They did a few counts to check the number of votes.
  2. the number obtained by counting;
    the total: [countable]The count was fifty to nothing.[uncountable]I lost count of the number of hours I spent.
  3. Law a separate charge in a legal proceeding against a defendant:[countable]two counts of embezzlement.

count2 /kaʊnt/USA pronunciation   n. [countable]
  1. World History(in some European countries) a nobleman equivalent in rank to an English earl.

count3 /kaʊnt/USA pronunciation  
  • This book uses the symbol [countable] to stand for countable noun. A countable noun is one that has a particular meaning or use in which we can imagine more than one item. So, a noun like boy has the meaning "a young male person,'' and for that meaning we can imagine more than one such person, so boy is a countable noun. The noun sugar, on the other hand, normally is a noun that cannot be counted, and so this book calls it noncount, with the symbol [uncountable]. But this example demonstrates how difficult this notion can be, because even the normally noncount noun sugar can have a countable use or meaning, namely, "a spoonful of sugar.'' That meaning of sugar is [countable], and so we can say "Give me two sugars, please,'' meaning "two spoonfuls (or packets, etc.) of sugar.'' The noun itself is not [countable] or [uncountable];
    the particular use of the noun is.

  • WordReference Random House Unabridged Dictionary of American English © 2019
    count1  (kount),USA pronunciation v.t. 
    1. to check over (the separate units or groups of a collection) one by one to determine the total number;
      add up;
      enumerate:He counted his tickets and found he had ten.
    2. to reckon up;
      calculate;
      compute.
    3. to list or name the numerals up to:Close your eyes and count ten.
    4. to include in a reckoning;
      take into account:There are five of us here, counting me.
    5. to reckon to the credit of another;
      ascribe;
      impute.
    6. to consider or regard:He counted himself lucky to have survived the crash.

    v.i. 
    1. to count the items of a collection one by one in order to determine the total:She counted three times before she was satisfied that none was missing.
    2. to list or name numerals in order:to count to 100 by fives.
    3. to reckon numerically.
    4. to have a specified numerical value.
    5. to be accounted or worth something:That first try didn't count—I was just practicing.
    6. to have merit, importance, value, etc.;
      deserve consideration:Every bit of help counts.
    7. to have worth;
      amount (usually fol. by for):Intelligence counts for something.
    8. count coup. See  coup 1 (def. 4).
    9. count down, to count backward, usually by ones, from a given integer to zero.
    10. count in, to include:If you're going to the beach, count me in.
    11. count off, (often used imperatively, as in the army) to count aloud by turns, as to arrange positions within a group of persons;
      divide or become divided into groups:Close up ranks and count off from the left by threes.
    12. count on or  upon, to depend or rely on:You can always count on him to lend you money.
    13. count out: 
      • [Boxing.]to declare (a boxer) a loser because of inability to stand up before the referee has counted 10 seconds.
      • to exclude:When it comes to mountain climbing, count me out.
      • to count and apportion or give out:She counted out four cookies to each child.
      • to disqualify (ballots) illegally in counting, in order to control the election.

    n. 
    1. the act of counting;
      enumeration;
      reckoning;
      calculation:A count of hands showed 23 in favor and 16 opposed.
    2. the number representing the result of a process of counting;
      the total number.
    3. an accounting.
    4. [Baseball.]the number of balls and strikes, usually designated in that order, that have been called on a batter during a turn at bat:a count of two balls and one strike.
    5. Lawa distinct charge or theory of action in a declaration or indictment:He was found guilty on two counts of theft.
    6. Textiles
      • a number representing the size or quality of yarn, esp. the number based on the relation of weight to length of the yarn and indicating its degree of coarseness.
      • the number of warp and filling threads per square inch in woven material, representing the texture of the fabric.
    7. [Bowling.]the number of pins struck down by the first ball rolled by a bowler in the frame following a spare and included in the score for the frame in which the spare was made.
    8. Physics
      • a single ionizing reaction registered by an ionization chamber, as in a Geiger counter.
      • the indication of the total number of ionizing reactions registered by an ionization chamber in a given period of time.
    9. [Archaic.]regard;
      notice.
    10. the count, [Boxing.]the calling aloud by the referee of the seconds from 1 to 10 while a downed boxer remains off his feet. Completion of the count signifies a knockout, which the referee then declares:A hard right sent the challenger down for the count.Also called  the full count. 

    adj. 
    1. Weights and Measuresnoting a number of items determined by an actual count:The box is labeled 50 count.
    • Late Latin computus calculation, reckoning, noun, nominal derivative of computāre
    • Anglo-French c(o)unte, Old French conte
    • Latin computāre to compute; (noun, nominal) Middle English counte
    • Anglo-French c(o)unter, Old French conter
    • (verb, verbal) Middle English counten 1275–1325

    count2  (kount),USA pronunciation n. 
    1. World History(in some European countries) a nobleman equivalent in rank to an English earl.
    • Late Latin comitem, accusative of comes honorary title of various imperial functionaries, Latin: retainer, staff member, literally, companion; see comes
    • Anglo-French c(o)unte, Old French conte, comte
    • late Middle English counte 1375–1425


    Collins Concise English Dictionary © HarperCollins Publishers::

    countdown /ˈkaʊntˌdaʊn/ n
    1. the act of counting backwards to time a critical operation exactly, such as the launching of a rocket or the detonation of explosives
    vb count down (intr, adverb)
    1. to count numbers backwards towards zero, esp in timing such a critical operation



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