Englishfor English speakers
difference
Noun
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The quality of being different.
You need to learn to accept differences in people.
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A characteristic of something that makes it different from something else.
There are three differences between these two pictures.
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A disagreement or argument.
The people had to settle their differences before they could work together.
spectrum
Noun
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A range.
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The pattern of absorption or emission of radiation that is made by a substance when it is put in contact with an energy such as radiation, heat, electricity, etc.