Englishfor English speakers
invoice
Noun
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An invoice is a commercial document that states the quantities and prices for the products or services provided by the seller. It is given to the buyer when he buys goods on credit or when he has not paid money for the services given to him.
product
Noun
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The product is the end result of a process, such as someone's efforts or of a certain situation.
Skill is the product of hours of practice; His reaction was the product of hunger and fatigue.
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A product is the number you get when you multiply two other numbers.
The product of 2 and 3 is 6.
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A product is a chemical substance that is made as a result of a chemical reaction.