擲る[naguru] to strike
乾坤一擲[kenkonitteki] stake all (on something)
擲弾[tekidan] grenade
擲弾発射筒[tekidanhasshatou] grenade launcher
放擲[houteki] abandoning

投擲[touteki] throwing
投擲競技[toutekikyougi] a throwing event
一擲[itteki] casting off or away
擲弾筒[tekidantou] grenade launcher
打擲[chouchaku] thrashing