Music 【乐】
- (especially as a direction) very loud or loudly（尤作演奏演唱指示）很强地（的）; 很响地（的）。
(pl. fortissimos 或fortissimi /-miː/ )
- a passage performed or marked to be performed very loudly用极强音演奏（或演唱）的部分; 标记用极强音演奏（或演唱）的部分。
词源
Italian, from Latin fortissimus 'very strong'.