release

1. The event of setting (someone or something) free (e.g. hostages, slaves, prisoners, caged animals, hooked or stuck mechanisms).
2. The distribution of an initial or new and upgraded version of a computer software product; the distribution can be either public or private.
3. Anything recently released or made available (as for sale).

   The video store advertised that it had all the latest releases.

4. That which is released, untied or let go.

   They marked the occasion with a release of butterflies.

5. The giving up of a claim, especially a debt.
6. Liberation from pain or suffering.
7. The process by which a chemical substance is set free.
8. (sound synthesis) The act or manner of ending a sound.
9. In the block system, a printed card conveying information and instructions to be used at intermediate sidings without telegraphic stations.
10. A device adapted to hold or release a device or mechanism as required.

1. To let go (of); to cease to hold or contain.

   He released his grasp on the lever.

2. To make available to the public.

   They released the new product later than intended.

3. To free or liberate; to set free.

   He was released after two years in prison.

4. To discharge.

   They released thousands of gallons of water into the river each month.

5. (of a call) To hang up.

   If you continue to use abusive language, I will need to release the call.

6. 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.
7. To loosen; to relax; to remove the obligation of.

   to release an ordinance

8. To set up; to provide with a goal-scoring opportunity
9. To set free a chemical substance.

verb

To lease again; to grant a new lease of; to let back.