- (old-fashioned, British English)
a small train at an amusement park, which goes very quickly up and down a steep track and around bends （游乐场的）云霄飞车，过山车 - the Big Dipper(North American English)(British English the Plough)[singular]
a group of seven bright stars that can only be seen from the northern half of the world 北斗七星；大熊星座