Definition of contexts:
(n) :
The surroundings, circumstances, environment, background or settings that determine, specify, or clarify the meaning of an event or other occurrence.
(n) :
(linguistics) The text in which a word or passage appears and which helps ascertain its meaning.
(n) :
(archaeology) The surroundings and environment in which an artifact is found and which may provide important clues about the artifact's function and/or cultural meaning.
(n) :
(programming) The data (register contents, program counter value, etc.) needed to switch to another thread of execution.
(n) :
(logic) For a formula: a finite set of variables, which set contains all the free variables in the given formula.
(n) :
(mycology) The trama or flesh of a mushroom.