skein Syllabification: (skein)Pronunciation: /skān/Definition of skein noun a length of thread or yarn, loosely coiled and knotted. a tangled or complicated arrangement, state, or situation:the skeins of her long hair figurativea skein of lies a flock of wild geese or swans in flight, typically in a V-shaped formation. Origin: Middle English: shortening of Old French escaigne, of unknown originSpell skein with the e before i.skein in other Oxford dictionaries Definition of skein in the British & World English dictionary