amplitude
/ˈæm.plɪ.tud/noun
amplitude is spelled A-M-P-L-I-T-U-D-E: 9 letters and 3 syllables. It appears 1.9 times per million words in written English, the 20,101st most frequent word form (wordfreq, 2021 data). As a noun, amplitude means “The measure of the size of something, especially its width or breadth; largeness, magnitude” (English Wiktionary, September 2026). The plural of amplitude is amplitudes.
How many letters and syllables are in amplitude?
| Letters | 9: A-M-P-L-I-T-U-D-E |
|---|---|
| Syllables | 3 (from its American pronunciation) |
| In writing | 1.9 times per million words; the 20,101st most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is amplitude?
Amplitude appears 1.9 times per million words in written English, the 20,101st most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce amplitude?
- US /ˈæm.plɪ.tud/
Amplitude has 3 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-us-amplitude.ogg, Wikimedia Commons (author and licence on each file's page).
Forms of amplitude
- amplitudes plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does amplitude mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The measure of the size of something, especially its width or breadth; largeness, magnitude.
- 2
The maximum absolute value of the vertical component of a curve or function, especially one that is periodic.
- 3
The maximum absolute value of some quantity that varies.
- 4
The arc of the horizon between the true east or west point and the center of the sun, or a star, at its rising or setting. At the rising, the amplitude is eastern or ortive: at the setting, it is western, occiduous, or occasive. It is also northern or southern, when north or south of the equator.
- 5
The arc of the horizon between the true east or west point and the foot of the vertical circle passing through any star or object.
- 6
The horizontal line which measures the distance to which a projectile is thrown; the range.
- 7
The range of motion of the gymnast's body while performing a skill.
- 8
The range of environmental conditions in which an organism can survive.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Amplitude in Spanish, French, German and Portuguese
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.