#3
No, it's chord/bass note.

ex. G/B=

e|--3
B|--0
G|--0
D|--0
A|--2
E|--x
Quote by SynGates7X

you are indeed mr. awesome.

Quote by Duane_Allman
eckmann88 you sir are a god.

Quote by SavageNights
Oh, you're so damn shallow, eckmann88. They have nice boobs, don't they?

Quote by DraketheFake
good job eckman, seriously, that last one alone would give me an eternal erection!

Help
Space
#4
^Correct. A slash chord is a chord with a note other than the root note as its lowest note.
To the left of the slash is the chord, to the right is the bass note. eg. D/F# 200232