A chord is a group of three or more notes played together. Chords are used to accompany a singer, or an instrumentalist who is playing the melody of a song. The first chord you will learn is the C major chord, usually just called the C chord. The C major chord is indicated by the letter C. This is called the chord symbol.
C
To play the C chord, place the first finger of your left hand just behind the first fret of the second string, the second finger just behind the second fret of the fourth string and your third finger just behind the third fret of the fifth string.