1. a cylinder or spool on which thread, yarn, or wire is wound

Examples

• She wound the thread around the bobbin before inserting it into the sewing machine.
• The bobbin was empty, so I had to replace it with a new one.
• Wind the yarn onto the bobbin carefully to avoid tangles.
• The sewing machine stopped working because the bobbin thread ran out.
• He loaded a fresh bobbin with blue thread for the embroidery project.
• The bobbin case holds the lower thread in place while sewing.