Associative Array: Abstract Data type, Collection (computing), Lookup table, Map (mathematics), Function Domain of a function, ... Index (information technology), type

Kernel (set theory): theory), Domain of a Function, Function (mathematics)

Function of a Real Variable: Variable, Mathematical Function, Domain (mathematics), Line

function Composition: composition, Mathematics, (mathematics), Associativity, Domain of a function, Codomain, Commutativity, Inverse Identity

Coincidence Point: Point, Mathematics, Function (mathematics), Domain (mathematics)