split

As a proper noun split

is a port city in croatia.

As a noun refactorization is

a split into constituent parts after a previous combination.

As a proper noun split

is a port city in croatia.

As a noun hyperplane is

(geometry) an n''-dimensional generalization of a plane; an affine subspace of dimension ''n-1'' that splits an ''n -dimensional space (in a one-dimensional space, it is a point; in two-dimensional space it is a line; in three-dimensional space, it is an ordinary plane).