jackstone
nounUK /ˈdʒækstəʊn/
US /ˈdʒækstoʊn/
A jackstone is a small metal or plastic piece you use to play a catching game.
She tossed the jackstone up and caught it on the back of her hand.
SYNONYMS
RELATED WORDS
OTHER MEANINGS
2. The game of jacks, played with a set of these pieces and a small ball.
The children played jackstone on the sidewalk after school.
3. A small stone or pebble used in a children's tossing game.
He kept a smooth jackstone in his pocket for good luck.
4. A fossil or mineral concretion resembling a small stone.
The geologist examined the jackstone found in the riverbed.