Shut-in and Shut in

Shut-in noun - Someone who is incapacitated by a chronic illness or injury.

Shut in and shut-in are semantically related In some cases you can use "Shut in" instead a noun phrase "Shut-in".

Shut in verb - Surround completely.

Shut-in and shut in are semantically related in sick person topic. Sometimes you can use "Shut-in" instead a noun "Shut in", if it concerns topics such as person being treated for medical problem.