noun
shot put
The track and field event where a heavy metal ball is thrown for distance.
彼は砲丸投げで県大会優勝を果たした。
He won the prefectural tournament in shot put.
Standard kanji spelling for the sport of shot put.
Abbreviated kanji form, rarely used.
砲丸 refers to the shot itself (the metal ball), while 砲丸投げ is the event of throwing it.
Compound of 砲丸 (hōgan, 'shot, cannonball') + 投げ (nage, 'throwing'), from 投げる (nageru, 'to throw').