different between subspace vs subbundle

English

sub- +? space

subspace (countable and uncountable, plural subspaces)

(countable, mathematics) A subset of a space which is a space in its own right.
(uncountable, science fiction) Any (often unspecified) method of communicating faster than light speed.

sub +? space (in sense of submissive), punning on the other etymology from sub-.

subspace (uncountable)

(BDSM) The psychological state of the submissive or "bottom" during sadomasochistic activity.

sub- +? bundle

subbundle (plural subbundles)

(mathematics) A collection of linear subspaces of the fibers V_x of V at x in X (where V is a vector bundle and X a topological space), that make up a vector bundle in their own right.

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