Twine or thin cord (6)
I believe the answer is:
string
I believe this is a double definition.
'twine' is the first definition.
(I know that twine can be written as string)
'thin cord' is the second definition.
(I've seen this before)
(Other definitions for string that I've seen before include "Group of horses" , "might one be plucked?" , "Cord, twine" , "light cord" , "Suspend" .)