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mike technically you are right.
But in The Netherlands we call a microwave oven a "Magnetron". The magnetron is the actual working element that heats up your food (and emits the microwaves). So we Dutch might be technically correct: no one besides us will understand.
My advice: do not name it foo and bar ;)
A lot of projects forget it will be the users that actually make a piece of software useful. You can make a great program, but forget the eye candy and naming and it will never get any traction...
I asked some complete novice users about what program they wanted to use for their "Facebook alternative". Most liked the way diaspora* looks, feels and works. But it has no groups, so that was just not an option. Now we are testing Hubzilla, but I am struggling to explain non tech minded users how channels/forums/privacy groups differ and how they work.