Thread holder is a job title that refers to a person or device that holds thread in place while it is being used. The crossword solutions for this term are SCREW (5 letters), SPOOL (5 letters), BOBBIN (6 letters), and ETUI (4 letters). A SCREW is a type of fastener with a helical ridge that is used to hold objects together. A SPOOL is a cylindrical object used to store and dispense thread. A BOBBIN is a small SPOOL used to hold thread, yarn, or other materials. An ETUI is a small box or case used to store sewing supplies such as needles, thread, and scissors.