Generally, string is a thin piece of fibre which is used to tie, bind, or hang other objects. String can be made from a variety of fibres. You can get different kinds, twine for example. The term has more specific meanings, within certain academic disciplines.

Table of contents
1 Biology
2 Computing
3 Mathematics
4 Music
5 Physics

Biology

A string is a chain of biochemicals.

Computing

In computer science, a string is a sequence of certain entities; these are, for example, tokens in a language grammar, states in automata, representations of DNA, characters (literal string) or bits (binary string).

Mathematics

In mathematics, as in computer science, strings are sequences of symbols, used in several contexts such as in the explicit construction of free groups.

Music

A string is a vibrating cord of metal, nylon, gut or other substance that vibrates to produce a tone in a variety of musical instruments. Strings can also refer to the section of an orchestra or band consisting in stringed instruments. See string instrument.

Physics

A string is a concept in quantum string theory; see also: string theory.