jacks

/ dʒæks /

noun

1. functioning as singular a game in which bone, metal, or plastic pieces ( jackstones ) are thrown and then picked up in various groups between bounces or throws of a small ball Sometimes calledknucklebones

Word History and Origins

Origin of jacks¹

C19: shortened from jackstones , variant of checkstones pebbles

Example Sentences

He then forced the injured boy to do pushups, situps and jumping jacks, prosecutors said.

From Los Angeles Times

In another, he said: “When you be seeing tricolours and union jacks marching side-by-side with a common goal, walking together as opposed to tearing lumps out of each other?”

From BBC

Wactor, 37, was killed after confronting three men who had put his car up on jacks on Hope Street near Pico Boulevard in order to steal his car’s catalytic converter, authorities said.

From Los Angeles Times

They would need to purchase larger support beams, more jacks and a larger truck to handle it.

From Seattle Times

Bigger fish — jacks, snook — were swimming in spirals or upside down in the shallow waters of the Atlantic Ocean and Gulf of Mexico.

From New York Times