String

The word string has a number of rather different meanings in modern English, though they are all related in the sense of denoting something long and thin.

• In common speech, it refers to a textile material, use for such things as wrapping packages. Kite string is another example.
• In computer software, it is a data type representing a sequence of characters.
• String theory is a cutting-edge theory of physics at extremely small scales, postulating that what ordinary quantum mechanics considers to be subatomic particles of size 10⁻¹⁵ meters are actually closed loops, that is strings, of even smaller size.

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