Ebmaj11 is Eb, G, Bb, D, F and Ab. Its natural is the same note name as the 4th, while the major 3rd remains.
In a close voicing, sits one fret above . A sharp 11th raises that note one more fret; Ebmaj11 calls for the natural 11th.
Let both notes sound only when you want that close interval heard. For the sharp 11th instead, played without a 5th, the chord is .
Also written EbM11, EbΔ11 or Eb major 11.

Stack the four notes closely, then drop the second voice from the top an octave. It typically lands on four adjacent strings: the guitar’s workhorse voicing.
That result, 5–R–3–7, is the shape usually meant by drop 2. Named by its bass note, as the inversions are here, it is the 2nd inversion.
How you get to it. The turn that lands on Ebmaj11 is to — the ii and the V of Eb — and shares its third and seventh with , so the hand barely moves between them.
Hear it land:→→
In which keys. Every note of Ebmaj11 belongs to C minor (the ♭III) and Eb major (the I, the tonic).
Contains Ebmaj11 and adds thirteenth.
The common shapes and the derived voicings come from different places, and both are explained in how this site is built.
Shows each chord the way this style would voice it, and marks which of its alternatives belong to the idiom.