|5||x or D||5th fretfr.||optionalopt.|
Chord G11 (5th fret) notes: (D), G, C, F and A. You should not play the 6th string.
This chord is played by placing a barre on fret five with your index finger. The note D on the fifth string is not required, but can be played on the 5th fret if needed.
Observation: the G11 (G dominant 11th) chord should include a 3rd, but it is often omitted - transforming it into a simple G9sus4 or G9sus.
1(G), 3(B), 5(D), b7(F), 9(A), 11(C).