Gmaj11 chord

The G major eleventh chord (abbreviated Gmaj11 chord) is a six-note chord consisting of the notes G, B, D, F♯, A, and C. The chord is formed by adding an eleventh to the G major ninth chord.

In practice, the fifth (D) is often omitted from the Gmaj11 chord to avoid a very dissonant sound, and because it's not always possible to play all notes simultaneously.