1blan·ket 
/ˈblæŋkət/ noun
plural blan·kets /ˈblæŋkət/ noun [count] 1 : a covering made of cloth that is used especially on a bed to keep you warm
▪ a wool blanket ▪ It's going to get cold tonight so you may need extra blankets. ▪ an electric blanket [=a blanket warmed by electricity] ▪ a beach blanket [=a blanket you sit on at the beach] — see picture at bed; see also security blanket 2 a : a mass of something that covers an area
▪ a blanket of snow/fog/ice ▪ a blanket of flowers/grass
b : a general mood — usually singular ▪ A blanket of gloom spread over the crowd when they realized their team would lose.
▪ a wool blanket ▪ It's going to get cold tonight so you may need extra blankets. ▪ an electric blanket [=a blanket warmed by electricity] ▪ a beach blanket [=a blanket you sit on at the beach] — see picture at bed; see also security blanket
▪ a blanket of snow/fog/ice ▪ a blanket of flowers/grass
b : a general mood — usually singular ▪ A blanket of gloom spread over the crowd when they realized their team would lose.
— see also wet blanket
