A Quick and Simple Dictionary

collocation

1. Noun.  (uncountable) The grouping or juxtaposition of things, especially words or sounds.
2. Noun.  (countable) Such a specific grouping.
3. Noun.  (linguistics, translation studies) The statistically significant collocation of particular words in a language.
4. Noun.  (mathematics) A method of determining coefficients in an expansion $y(x)\; =\; y\_\{0\}(x)\; +\; sum\_\{l=0\}^\{q\}alpha\_\{l\}\; y\_\{l\}(x)$ so as to nullify the values of an ordinary differential equation $L[y(x)]=0$ at prescribed points.
5. Noun.  (computing) A service allowing multiple customers to locate network, server, and storage gear, connect them to a variety of telecommunications and network service providers, with a minimum of cost and complexity.