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fortissimo

American  
[fawr-tis-uh-moh, fawr-tees-see-maw] / fɔrˈtɪs əˌmoʊ, fɔrˈtis siˌmɔ /

adjective

  1. (a direction) very loud.


adverb

  1. (a direction) very loudly.

fortissimo British  
/ fɔːˈtɪsɪˌməʊ /

adjective

  1.  ff.  very loud

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. a very loud passage in music

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
fortissimo Cultural  
  1. A musical direction meaning “to be performed very loudly”; the opposite of pianissimo.


Etymology

Origin of fortissimo

1715–25; < Italian; superlative of forte forte 2

Explanation

The word fortissimo in a piece of music means you need to play or sing very loudly at that point. It’s the opposite of pianissimo. You may already know the Italian word forte as used in music to mean "loud" or "loudly." Fortissimo has the same root, plus the suffix -issimo, which is like the English ending -est in loudest. So theoretically, fortissimo tells you to produce the loudest sound you can. The instruction is represented by the symbol ƒƒ, but you can also see ƒƒƒ sometimes, or even ƒƒƒƒ! Which is extremely, crashingly loud!

Keep Reading on Vocabulary.com

Vocabulary lists containing fortissimo

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

When the 48-year-old conductor leans forward to extend his arms and emphasize vibrato or stretches high for a fortissimo during an orchestra concert, the red soles of his patent leather Christian Louboutins become visible.

From Seattle Times • Jun. 26, 2023

“Some players go for it and some… I really had to say, ‘No that fortissimo isn’t enough.’

From Seattle Times • Oct. 5, 2022

Mr Wallace states the UK government's position in the minor key compared to the fortissimo of the foreign secretary.

From BBC • Feb. 11, 2022

What there were, however, were people clapping between movements of the symphony, and at one point in the first movement at a sudden fortissimo.

From Los Angeles Times • Aug. 25, 2021

The amplitude of a sound is a particular number, usually measured in decibels, but dynamics are relative; an orchestra playing fortissimo sounds much louder than a single violin playing fortissimo.

From "Understanding Basic Music Theory" by Catherine Schmidt-Jones and Russel Jones