ornamental garden stone; garden rock
A stone placed in a Japanese garden to create a natural, uncontrived look; often part of a rock arrangement.
In Japanese gardens, ornamental stones are placed to look natural.
sacrifice stone (in Go)
In the game of Go, a stone deliberately placed to be captured as part of a larger strategy.
In professional Go games, you often see moves that use a sacrifice stone to seal in the opponent's stones.
sacrifice (of oneself, one's career, etc.)
Metaphorical use, often in the pattern 〜に/となる, describing a person or thing willingly given up for a greater purpose.
He chose to become a sacrifice for the company's reconstruction.
foundation stone; riprap
Stones used as a base in construction or as riprap for erosion control; a more technical, literal sense.
In revetment work, riprap stones are used to prevent wave erosion.
Standard spelling; high-frequency news term.
Common variant without okurigana.
Rare variant using 棄 instead of 捨.
Irregular okurigana usage; rarely seen.
Compound of 捨て (stem of 捨てる, 'to throw away') + 石 ('stone'). The metaphorical sense derives from the idea of a stone that is deliberately discarded for a larger purpose.