different between eventing vs venting

English

event +? -ing

eventing (usually uncountable, plural eventings)

An equestrian event which comprises dressage, cross-country, and showjumping; a similar event using motor cars
(computing) The ability of one system or part of a program to send notifications to another, by raising events.
- 2011, Thomas Lee, Karl Mitschke, Mark E. Schill, Windows PowerShell 2.0 Bible
  The concept behind eventing is fairly simple. With eventing, you have two pieces of code. For example, you might have a script that is running based on a scheduled task. That script might encounter some condition and can raise (or signal) an event, perhaps that it has completed its work. A second bit of code, perhaps a second script running on that same system, can register for events.
(social sciences, rare) The occurrence of an event.

eventing

venting

venting (plural ventings)

The act by which something is vented.
- 2007, Samuel Upton Newtan, Nuclear War I and Other Major Nuclear Disasters of the 20th Century (page 94)
  It wasn't until 1978 that the general public learned that nuclear ventings were not unusual.

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