Me in IT UNIX/Linux consultancy

In my profession (UNIX/Linux and *BSD environments) Open Source is commonly used. My personal vision is that Open Source does not specifically imply free. Let's see what a randomly selected group of people answer to the question:

"Is Open Source software Free software?"

Person 0: No, for example Linux is not free; you are not free to do what you want.
Person 1: Open Source is not Free Software. Open Source is possibly free.
Person 2: Linux is financially free.
Person 3: Yes, Open Source software is free.

Wow, the answers are actually not what I expected. There is a difference in interpretation of Free. Lets take a look:

• Free according to Wikipedia has many meanings. None are conclusive.
• Free according to the Free Software Foundation Europe is "well defined", but I can't find it on their website!
• Free Software according to Wikipedia is defined as: Free software is software that can be used, studied, and modified without restriction, and which can be copied and redistributed in modified or unmodified form either without restriction, or with restrictions only to ensure that further recipients can also do these things.

It seems that I was only thinking about the financial side of free and had forgotten about the functional aspects of free!