Englishfor English speakers
instruction
Noun
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An instruction is a command or a step that helps you achieve a goal.
Before he died, he gave the hospital instructions about how to deal with his body.
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The instructions that come with a new machine, computer, or product tell you how to use the product.
I couldn't figure out how to set the temperature in the fridge, so I read the instructions.
assignment
Noun
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An assignment is a task that is given to somebody for them to complete.
The teacher gave Joe an assignment to complete while he is away on vacation.