| idea
| noun
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| a thought or suggestion about something.
| Do you have any better ideas?
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| ideal
| adjective
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| perfect in every way.
| That’s an ideal solution.
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| identical
| adjective
| v1
| exactly the same.
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| identify
| verb
| v1
| to recognize something or someone by name.
| Can you identify which tree these leaves come from?
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| identity
| noun
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| who someone is or what something is.
| The card around his neck shows his identity.
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| idle
| adjective
| v1
| lazy, or doing nothing.
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| igloo
| noun
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| a round building made of snow and ice.
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| ignorant
| adjective
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| not knowing about something.
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| ignore
| verb
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| to take no notice of someone or something.
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| iguana
| noun
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| a large lizard found mainly in Central and South America.
| The common iguana lives near rivers and streams. It eats plants, insects, and small animals.
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| ill
| adjective
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| feeling sick or unwell.
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| illegal
| adjective
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| not allowed by law.
| It is illegal to park there.
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| illustrate
| verb
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| to supply with pictures.
| Illustrating a book.
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| image
| noun
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| a picture of something or someone, or a picture in your mind.
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| imaginary
| adjective
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| not real.
| The unicorn is an imaginary animal.
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| imagine
| verb
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| to create a picture of something in your mind.
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| imitate
| verb
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| to copy the way that someone talks or does something
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| imitation
| noun
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| a copy.
| These imitations of fruit don’t look real.
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| immediately
| adverb
| v1
| without delay.
| Go home immediately!
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| immigrate
| verb
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| to go to a country in order to live there permanently.
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| impact
| noun
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| the action of one object hitting another with force.
| The impact of the crash wrecked both cars.
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| impatient
| adjective
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| not willing to wait.
| He became impatient when the bus didn’t come.
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| important
| adjective
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| meaning a lot
| Winning this competition is very important to me.
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| impossible
| adjective
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| not able to be done.
| It is impossible for people to fly like birds.
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| impress
| verb
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| to make someone have a good opinion of something.
| His cooking skills impressed the judges.
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| improve
| verb
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| to make or become better.
| We improved the flowerpot by decorating it.
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| include
| verb
| v1
| to put something in as part of a whole.
| The travel brochure includes pictures of the hotels.
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| inconvenient
| adjective
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| not easy or not suitable.
| Steep stairs are inconvenient for a lot of people.
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| increase
| verb
| v1
| to become bigger in size or number
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| incredible
| adjective
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| difficult to believe.
| He tells some incredible stories.
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