wool 
/ˈwʊl/ noun
/ˈwʊl/ noun [noncount] 1 : the soft, thick hair of sheep and some other animals — see also lambswool 2 : cloth or clothing made of wool
▪ She doesn't like wool because it can be itchy. ▪ virgin wool [=wool that is being used in fabric for the first time] — often used before another noun ▪ wool socks ▪ a wool blanket/sweater 3 chiefly Brit : long, thick thread made of wool and used for knitting
▪ a ball of wool [=(US) yarn]
▪ She doesn't like wool because it can be itchy. ▪ virgin wool [=wool that is being used in fabric for the first time] — often used before another noun ▪ wool socks ▪ a wool blanket/sweater
▪ a ball of wool [=(US) yarn]
pull the wool over someone's eyes
informal : to trick or deceive someone : to hide the truth from someone
▪ He was too clever to let them pull the wool over his eyes.
▪ He was too clever to let them pull the wool over his eyes.
