Top Definition
1. A group of software whose source code is available to the general public for the purpose of improvement, modification, etc.
2. Any software released under the GPL, LGPL, or other open source licenses.
3. The stuff that makes Bill Gates' life sad.
Linux, Apache, MySQL, and plenty else is open source - and it's all good stuff.
von Chicken Licken 6. August 2003

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Software that has a source code available to the public.

Giving the public the ability to modify, improve, and fix the program itself. Allowing the creator of the program to not have to find a way to fix the program himself and allowing more patches and improvements to the software.

Also allowing the public to be able to port the program onto other operating systems, so that dual-booters who can program will make a windows version of an awesome GNU/Linux/BSD/Solaris program.

See also open source
My Slackware has the linux source code locate in "/usr/src/linux". I compile my own linux kernal to fit my needs of my computer. Take that M$!

GPL is an example of an open-source license.
von tsphan 26. November 2004

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Any project that is open to anyone anywhere, everyone everywhere.

An idea, invention, project,that is open to general public to allow changes in anyway (Preferably for the better)
Government has to have an opeon source policy for street crime prevention.

Lincolndogs is an open source animation project

Dr Malik applies an open source policy on all his inventions and innovations
von Malik W 16. August 2006

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The Urban Dictionary Mug

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A synonym for "abandoned". It is commonly known that open-source projects all become abandoned at some stage, and thus abandoned is just a progressive state of open-source
Orphanges are houses for open source children.
The Smith's house became infested with bugs after they open-sourced it.
The beggar open-sourced his job and has no money to buy food or clothes.
von recre8 16. Januar 2015

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Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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