locked up

1.
USUKGlobalneutral
- Confined in jail or prison; formally detained by law enforcement.
- Placed under custody or held in detention.
2.
USUKGlobalneutral
- Secured with a lock or otherwise fastened so that access is prevented.
- Closely shut or made inaccessible for safety or protection.
3.
USUKGlobalinformalfigurative
- Emotionally closed off or mentally reserved; keeping feelings or thoughts tightly controlled.
- To hold or contain an emotion or aspect of oneself so that it is not expressed.
4.
USUKGlobalinformaltechnical
- To become immobile or seized (as of machinery or a mechanism) such that it no longer operates.
- To be rendered inoperative or jammed.

Examples: