fortissimo for-TEE-see-moe Your browser does not support the audio element. [ Italian ] Definition A directive to perform the indicated passage very loudly symbolized by "ff". Louder than forte "f". See more about dynamic marks in the Appendix. See Also [Abbreviation] ff Share Share on Facebook (opens in a new tab) Share on X (opens in a new tab) Last Updated: 2016-05-25 13:50:54