What does fff stand for?
| Meaning | Fortississimo |
|---|---|
| Category | Arts & entertainment |
| Type | Symbol |
The musical symbol fff stands for fortississimo. It is a dynamic marking indicating very, very loud playing, rather than a three-word acronym.
The repeated lowercase f characters belong to musical notation. Read the marking with its passage, instrument and surrounding directions. This guide does not assign a decibel target or a multiplier of loudness to fff.

Meaning in context
- fff
- The written dynamic marking corresponds to fortississimo.
- Fortississimo
- A loudness instruction. It is not the name of a printing process or a direction to change the written tempo.
Practical examples
Separate loudness from speed
- Before
The score changes to fff, so I must double the tempo.
- After
The score changes to fff; I will follow the dynamic instruction while keeping the written tempo unless another direction changes it.
The revised reading treats the dynamic marking and tempo as separate instructions.
Avoid an invented number
- Before
Three f letters mean exactly three times the loudness.
- After
fff identifies fortississimo; I will interpret it with the instrument and surrounding musical directions.
The notation names a dynamic level. The revised sentence does not invent a numerical acoustic conversion.
Read neighboring markings
- Before
ff and fff are the same written marking.
- After
ff is fortissimo; fff is fortississimo, a still louder dynamic instruction.
The extra f changes the written dynamic instruction. This comparison does not specify a decibel difference or require changing the notated tempo.
Original illustrative examples, not quotations or reports of actual events.
Use fff with clarity
What should fff change in my reading of this passage?
See all guidance
Identify the marking
Read the repeated f as a notation symbol, not three separate words.
fff means fortississimo in this score.
Read the passage
Check the dynamic alongside the written tempo and articulation.
The passage changes dynamic without an explicit tempo change.
Prepare a rehearsal note
Name the passage and what needs to be coordinated with other performers.
We need to agree how the fff passage fits the surrounding dynamics.
These are illustrative exercises. The tool prepares a draft in your browser; it does not inspect your system, change settings or confirm the facts you enter.
Help improve this entry
Spot a mistake or have a clearer example? Suggest a change.
By AcronymIndex Editorial Team · Editorial policy