Definition of "release"

release¹

/ɹəˈliːs/

noun
countable and uncountable, plural releases
1. The event of setting (someone or something) free (e.g. hostages, slaves, prisoners, caged animals, hooked or stuck mechanisms).
  Quotations
  Similar studies of rats have employed four different intracranial resorbable, slow sustained release systems—surgical foam, a thermal gel depot, a microcapsule or biodegradable polymer beads.
  2013 May-June, Charles T. Ambrose, “Alzheimer’s Disease”, in American Scientist, volume 101, number 3, page 200
2. (software) The distribution, either public or private, of an initial or new and upgraded version of a computer software product.
3. Anything recently released or made available (as for sale).
4. That which is released, untied or let go.
5. (law) The giving up of a claim, especially a debt.
6. Liberation from pain or suffering.
7. (biochemistry) The process by which a chemical substance is set free.
8. (phonetics, sound synthesis) The act or manner of ending a sound.
9. (railways, historical) 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. A catch on a motor-starting rheostat, which automatically releases the rheostat arm and so stops the motor in case of a break in the field circuit.
  2. The catch on an electromagnetic circuit breaker for a motor, triggered in the event of an overload.
  3. The lever or button on a camera that opens the shutter to allow a photograph to be taken.
11. Orgasm.
12. Discharged semen
  Quotations
  His hot release pouring into her, filling her and adding to the wettness within her
  1997 January 31, MKara50188, “Repost! Abduction (J/K, mild bondage, M/F sex)”, in alt.startrek.creative.erotica‎ (Usenet)
13. (music) A kind of bridge used in jazz music.
verb
third-person singular simple present releases, present participle releasing, simple past and past participle released
1. To let go (of); to cease to hold or contain.
2. To make available to the public.
3. To free or liberate; to set free.
4. To discharge.
5. (telephony) (of a call) To hang up.
6. (law) 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.
  Quotations
  punishments inflicted and released
  1594–1597, Richard Hooker, edited by J[ohn] S[penser], Of the Lawes of Ecclesiastical Politie, […], London: […] Will[iam] Stansby [for Matthew Lownes], published 1611, (please specify the page)
8. (soccer) To set up; to provide with a goal-scoring opportunity
  Quotations
  With the Gunners far too lightweight in midfield, Mikel Arteta dropped back into a deeper-lying role. This freed Yossi Benayoun to go further forward, a move that helped forge a rare Arsenal chance on 30 minutes when the Israeli released Van Persie, only for the Dutchman's snap-shot to be tipped around the post.
  2011 September 13, Sam Lyon, “Borussia Dortmund 1-1 Arsenal”, in BBC
9. (biochemistry) To set free a chemical substance.
10. (intransitive) to come out; be out.

release²

/ɹiːˈliːs/

verb
third-person singular simple present releases, present participle releasing, simple past and past participle released
1. (transitive) To lease again; to grant a new lease of; to let back.