Sus 2

"Sus2 chords are formed by replacing the third (the second note in the chord) with the second. In addition to sus2 there is sus4, which is somewhat more common. If you see instructions to play a chord as Esus or Asus it's usually not sus2 but sus4 chords. Sus2 is also often played exactly as add2 chords.

 The shift from the original major chord to the sus chord is sometimes easily done"
https://www.guitar-chord.org/sus2-chords.html