4 Strings.
The lowest string on a four string double bass is an E string. If you have a fairly rare five string double bass then the lowest fifth string is a B string.
the double bass has 4 strings G string D string A string and E string.
The Double Bass is a string instrument. Other instruments in the orchestral family of string instruments are the violin, viola and cello.
String
The Double Bass has several different names such as the; String Bass, Upright Bass, Standup Bass or Contrabass.
Members of the orchestral string family are Violin, Viola, Cello and Double Bass.
The Double Bass or the Contrabass is the lowest member of the string family.
The double bass is called so because it is the largest and lowest-pitched instrument in the string family, providing a "double" or deeper bass sound compared to other string instruments.
string
The double bass
the double bass (as in bass like a cello not a guitar)
The string bass and double bass are actually the same instrument, just with different names. The term "double bass" is more commonly used in classical music, while "string bass" is often used in jazz and popular music. Both refer to the largest and lowest-pitched instrument in the string family, played with a bow or plucked with the fingers.