Difference between Closed and Shuttered

Closed

Part of speech: verb

Definition: (physical) To remove a gap.

Part of speech: adjective

Definition: Sealed, made inaccessible or impassable; not open Not operating or conducting trade Non public (as in closed source) Having an open complement. Such that its image under the specified operation is contained in it. Lacking a free variable.

Example sentence: Spending quality time with my closed ones is always on my wish list.

Shuttered

Part of speech: verb

Definition: To close shutters covering.