Ten Forward is, of course the inconic lounge/bar/gathering area on the Enterprise-D. It is named after the fact that it is located at the forward extreme of the tenth deck, making it the most forward part of the ship and thus an ideal place for spectacular views.
I am interested in whether this name was invented for Star Trek: The Next Generation or whether there is any precendent for this type of name in Star Trek or in an other sci-fi or real-world vessel?