Screw Off Meaning

Example : To remove the lid of a jar or other container by unscrewing it.2004, Cathy Myata, Speaking rules!: Games and activities for creating effective speakers, presenters and storytellers, page 52:  Hold it in two hands and screw off the lid. Set the lid down. Inside are pickled onions.1878, Robert White Stevens, On the stowage of ships and their cargoes: with information regarding freights, charter parties, &c., &c., page 798:  On account of the high rate of wages at Sydney, stevedores will not "screw off" now so willingly as they did formerly.