noun
plural costs
the price of something :the amount of money that is needed to pay for or buy something [count]
synonyms see1price</SYNR
[count] :an amount of money that must be spent regularly to pay for something (such as running a business or raising a family)
usually plural
something that is lost, damaged, or given up in order to achieve or get something [noncount]
To do something at all costs or (less commonly) at any cost is to do it even if you have to suffer, work very hard, lose everything you have, etc.
costs [plural] :the money used to pay for a court case
at cost
US
If you buy or sell something at cost, you buy or sell it for the amount of money that was needed to make it or get it.
at no cost
used to say that something is free
count the cost
to your cost
chiefly Brit :from your own bad experience
verb
costs; cost; costing
[+ obj] to have (an amount of money) as a price
If something costs a certain amount of money, you have to pay that amount of money in order to buy it, use it, or do it.
to cause (someone) to pay an amount of money
If something does not cost (you) a penny or (US) cost (you) a dime/nickel, you do not need to pay any money for it; it is free.
to cause (someone) to lose something
If something costs you dearly/dear, it causes you to lose something or to suffer a lot.
to cause (someone) to experience something unpleasant
past tense costed Brit business :to determine how much money will be needed to pay for (something) - usually used as (be) costed