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verb [transitive] American English pronunciation: cost /kɔst/ 
Word Forms
present tense
present participlecosting
past tensecost
past participlecost
  1. 1
    if something costs an amount of money, that amount is needed in order to buy it, pay for it, or do it

    A new computer costs between $500 and $3,000.

    cost someone something:

    Unemployment costs the taxpayer billions each year.

    cost something per minute/hour/year etc.:

    Calls cost 36 cents per minute.

    cost something per person/head/adult etc.:

    Dinner cost $35 per person including wine.

    cost something to do something:

    How much does it cost to rent a bike?

  2. 2
    to cause someone to lose something good or valuable

    The merger will cost jobs.

    cost someone something:

    His decision to take the car cost him his life.

    cost someone dearly (=cause a serious loss):

    We made two mistakes that cost us dearly.

  3. 3



    cost out

    past tense costed
    past participle costed
    to calculate exactly how much something will cost

    All your proposals must be costed before we can consider them.



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