Release

1. To relieve from something that confines, burdens, or oppresses, as from pain, trouble, obligation, penalty.
2. Discharge from obligation or responsibility, as from debt, penalty, or claim of any kind; acquittance.
3. To let go, as a legal claim; to discharge or relinquish a right to, as lands or tenements, by conveying to another who has some right or estate in possession, as when the person in remainder releases his right to the tenant in possession; to quit.
4. The act of letting loose or freeing, or the state of being let loose or freed; liberation or discharge from restraint of any kind, as from confinement or bondage.
5. To lease again; to grant a new lease of; to let back.
6. To loosen; to relax; to remove the obligation of; as, to release an ordinance.
7. Relief from care, pain, or any burden.
8. A giving up or relinquishment of some right or claim; a conveyance of a man's right in lands or tenements to another who has some estate in possession; a quitclaim.
9. To let loose again; to set free from restraint, confinement, or servitude; to give liberty to, or to set at liberty; to let go.
10. The act of opening the exhaust port to allow the steam to escape.