This is the 12708th most frequent Russian word.
косточкой
The Russian word "косточкой" means "with a small bone" or "pit" (as in a fruit pit).
Refers to the seed inside fruits like cherries.
Девочка нашла косточку в вишне.
The girl found a pit in the cherry.
Refers to a small, hard object that is being thrown.
Он сидел под деревом, бросая косточкой в реку.
He sat under the tree, throwing a pit into the river.
The word denotes the item used in an action of hitting.