The C-sharp suspended fourth chord (abbreviated "C#sus4 chord") is a triad consisting of the notes C, F, and G. The chord is formed by replacing the third of a C-sharp major chord with a perfect fourth.

Name
C-sharp suspended fourth chord
Notes
C F G
Intervals
1 4 5
Chord symbol
Csus4
Alternative symbols
C(sus4) Csus
Type
triad (three-note chord)

C#sus4 chord on piano

C#sus4 chord on guitar

C#sus4 chord on ukulele

C#sus4 chord on the staff