sentence: japanese spinning top with pullstrings a jumping jack toy with pullstring chainsaw starter handle attached to a pullcord pullcord on a transit bus pullchain on a train emergency brake a pullstring ( pull string , pull-string ) or pullcord ( pull cord , pull-cord ) or pullchain ( pull-chain , pull chain ) is a string , cord , or chain wound on a spring - loaded spindle that engages a mechanism when it is pulled .