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| (ESS4000) billion | Definition: A billion is a very large number: 1,000,000,000. | Example: →There are billions of stars in outer space. | (ESS4000) bill | Definition: A bill is a statement of money owed for goods or a service. | Example: →I have so many bills that I do not know how to pay for them all. | (ESS4000) billionaire | Definition: A billionaire is someone who has at least one billion dollars. | Example: →The sale of his inventions made the inventor a billionaire. |
| A2 | bill | noun | B1 | bill | verb |
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bill