The way in which two or more things which you are comparing are not the same: Differences in color and size; The difference between two things is the way in which they are unlike each other.
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The degree to which one person or thing differs from another: How to use difference in a sentence. Usually singular] the difference in their ages is about six months.
Difference is the most general:
The meaning of difference is the quality or state of being dissimilar or different. These nouns refer to a lack of correspondence or agreement.
