skein
n//skeɪn//härva, nystan, fylking, plogformation, v-formation
A quantity of yarn, thread, etc. put up together in an oblong shape, after it is taken from the reel. A skein of cotton yarn is formed by eighty turns of the thread around a fifty-four inch reel.
(zoology, UK, dialect, collective) A group of wild fowl (e.g. geese, goslings) when they are in flight.