bobbinPronunciation: /ˈbɒbɪn/Translate bobbin | into German | into Italian | into Spanish Definition of bobbin noun 1a cylinder or cone holding thread, yarn, or wire, used especially in weaving and machine sewing. a spool or reel. 2a small bar attached to a string used for raising a door latch. Origin: mid 16th century: from French bobine, of unknown originbobbin in other Oxford dictionaries Definition of bobbin in the US English dictionary