noun a fine cord or narrow braid.
2. bobbin ·noun the little rounded piece of wood, at the end of a latch string, which is pulled to raise the latch.
3. bobbin ·noun a cylindrical or spool-shaped coil or insulated wire, usually containing a core of soft iron which becomes magnetic when the wire is traversed by an electrical current.
4. bobbin ·noun a small pin, or cylinder, formerly of bone, now most commonly of wood, used in the making of pillow lace. each thread is wound on a separate bobbin which hangs down holding the thread at a slight tension.
5. bobbin ·noun a spool or reel of various material and construction, with a head at one or both ends, and sometimes with a hole bored through its length by which it may be placed on a spindle or pivot. it is used to hold yarn or thread, as in spinning or warping machines, looms, sewing machines, ·etc.