In music, fortissimo means very loud — louder than forte, which already means loud. On a score it is often written ff.

In music在音樂裡，fortissimo fortissimo means意思是 very loud非常大聲——louder than比…更大聲 forte forte，which而forte已經 already means意思是 loud大聲了。On a score在樂譜上 it它 is often常常 written寫成 ff ff。

It is a direction to the player or singer, not a number on a machine: how loud “very loud” is depends on the piece, the room, and the instrument. Though actually, like many Italian markings, it is a step on a ladder, not a scientific ceiling.

It它 is是 a direction一個指示 to the player or singer給演奏者或歌手的，not不是 a number on a machine機器上的一個數字：how loud多大聲 "very loud"這個「非常大聲」 is depends on取決於 the piece曲子、the room房間、and和 the instrument樂器。Though actually不過，like就像 many Italian markings很多義大利文的記號一樣，it它 is是 a step一個階梯上的一級 on a ladder，not不是 a scientific ceiling一個科學的上限。

Forte is strong; fortissimo is very strong; even louder markings exist (fortississimo, fff), but fortissimo is the one most learners meet.

Forte forte is是 strong強；fortissimo fortissimo is是 very strong很強；even更大聲的 louder markings記號 exist還存在（fortississimo、fff），but但 fortissimo fortissimo is是 the one那個 most learners大部分學習者 meet會遇到的。

You may also hear it as a noun for a very loud passage: “the fortissimo at the end.” People say it in rehearsal in Italian or in English (“play that fortissimo”). It is at home in classical music talk; a pop musician might just say “much louder.”

You你 may也可能 also hear聽到 it它 as當作 a noun名詞 for指 a very loud passage一段非常大聲的樂段："the fortissimo at the end."「結尾那個fortissimo」People人們 say會說 it它 in rehearsal在排練時 in Italian or in English用義大利文或英文（"play that fortissimo"「彈/唱那個fortissimo」）。It它 is在...很自在 at home in classical music talk在古典音樂的談話裡；a pop musician一個流行音樂人 might可能 just只會 say說 "much louder."「大聲很多」。