| instead
| adverb
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| in place of.
| I chose the red pen instead of the blue one.
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| instinct
| noun
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| a strong, natural feeling that makes animals or people do things that they haven’t learned.
| Birds have a pecking instinct.
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| instruction
| noun
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| information about something.
| Read the instructions before you use the machine.
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| instrument
| noun
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| a device or tool that has a special use.
| A navigational instrument.
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| insult
| verb
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| to upset someone by saying unpleasant things to them or about them.
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| intelligent
| adjective
|
| quick to learn, think, and understand.
| She was intelligent, so she solved the puzzle quickly.
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| interest
| verb
|
| to hold the attention of.
| Anything to do with space interests me.
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| interfere
| verb
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| to involve yourself in something that doesn’t have anything to do with you.
| She kept interfering as he tried to prepare lunch.
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| interior
| noun
| v1
| the part that is inside something.
| interior of a doll’s house
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| interjection
| noun
|
| a word such as “good-bye” or “hey” that can be used on its own.
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| internal
| adjective
| v1
| on the inside.
| The internal workings of a pocket watch.
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| international
| adjective
|
| involving several countries.
| An international event.
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| internet
| noun
|
| a worldwide computer network for sharing information and sending messages.
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| interrupt
| verb
| v1
| to stop someone from talking by breaking into the conversation.
| Please don’t interrupt while I’m speaking!
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| intersection
| noun
| v1
| a place where lines or roads cross each other.
| A busy road intersection.
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| jtoy
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| interval
| noun
| v1
| a period of time between events.
| There was a short interval between the two acts.
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| interview
| noun
|
| a meeting where someone is questioned.
| A job interview.
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| intestine
| noun
|
| an organ that is connected to the stomach. Food is digested in the intestine as well as in the stomach.
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| introduce
| verb
|
| to present a person or idea to someone for the first time.
| Introduce me to your friend.
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| invade
| verb
|
| to enter a place as an enemy.
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| invent
| verb
|
| to design an original device or process.
| This device was invented to record sound and play it back.
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| investigate
| verb
|
| to look at a situation carefully to find out what is happening or what has happened.
| The police are investigating yesterday’s robbery.
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| invisible
| adjective
|
| unable to be seen.
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| invitation
| noun
|
| a written or spoken request asking someone to come and be with you.
| A party invitation.
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| involve
| verb
|
| to include or affect something.
| Two cars were involved in the accident.
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| involved
| adjective
|
| complicated.
| An involved plan.
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| iris
| noun
|
| a tall, flowering plant that grows from a bulb or a rootlike stem.
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| iron
| noun
|
| a strong, heavy metal found in rocks; it is used to make things such as tools and gates.
| wrought-iron gate
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| irrigate
| verb
|
| to supply land with water.
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| irritate
| verb
|
| to annoy someone.
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