noun · 11 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
General-American:/ˈæm.plɪ.tud/
US:Recorded audio is listed in the source snapshot.
CMU ARPABET:AE1 M P L AH0 T UW2 D
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
The measure of the size of something, especially its width or breadth; largeness, magnitude.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
The maximum absolute value of the vertical component of a curve or function, especially one that is periodic.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: mathematics, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
The maximum absolute value of some quantity that varies.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 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.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: astronomy, natural-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
noun
Meaning 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.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: astronomy, natural-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
noun
Meaning 6
The horizontal line which measures the distance to which a projectile is thrown; the range.
Definition source: English Wiktionary via Wiktextract
(physics) the maximum displacement of a periodic wave
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: shift, displacement
History
Etymology
Etymology tree Proto-Indo-European *h3emh3-der. Proto-Indo-European *h3emh3-lo-s Proto-Italic *amlos? Proto-Indo-European *h2ent- Proto-Indo-European *-s Proto-Indo-European *h2énts? Proto-Indo-European *h2m̥bhíder. Proto-Italic *amβi- Latin ambi- Proto-Indo-European *pleh1- Proto-Indo-European *-nós Proto-Indo-European *pl̥h1nós Proto-Italic *plēnosder. Latin plēnus? Latin ambiplus? Latin amplus Proto-Indo-European *-tu- Proto-Indo-European *-d- Proto-Indo-European *-Hō Proto-Italic *-tūdō Latin -tūdō Latin amplitūdōder. Middle French amplitudebor. English amplitude Borrowed from Middle French amplitude, from Latin amplitūdō, from amplus (“large”). By surface analysis, ample + -itude.
Across languages
Translations
92 source translations are retained for this English entry.
Asturian:
amplitú
— magnitude
Basque:
anplitude
— magnitude
Bulgarian:
амплитуда
(amplituda)
— magnitude
Catalan:
amplitud
— magnitude
Chinese Mandarin:
幅度
(fúdù)
— magnitude
Danish:
amplitude
— magnitude
Danish:
magnitude
— magnitude
Dutch:
omvang
— magnitude
Esperanto:
amplekso
— magnitude
Finnish:
laajuus
— magnitude
Japanese:
広さ
(hirosa)
— magnitude
Latin:
amplitūdō
— magnitude
Norwegian:
amplitude
— magnitude
Polish:
amplituda
— magnitude
Portuguese:
amplitude
— magnitude
Portuguese:
magnitude
— magnitude
Romanian:
amplitudine
— magnitude
Russian:
полнота́
(polnotá)
— magnitude
Russian:
широта́
(širotá)
— magnitude
Serbo-Croatian:
amplituda
— magnitude
Spanish:
amplitud
— magnitude
Swedish:
amplitud
— magnitude
Swedish:
magnitud
— magnitude
Tagalog:
hagkis
— magnitude
Ukrainian:
ампліту́да
(amplitúda)
— magnitude
Vietnamese:
biên độ
— magnitude
Armenian:
ամպլիտուդ
(amplitud)
— maths: maximum absolute value
Armenian:
լայնույթ
(laynuytʻ)
— maths: maximum absolute value
Asturian:
amplitú
— maths: maximum absolute value
Bulgarian:
амплитуда
(amplituda)
— maths: maximum absolute value
Catalan:
amplitud
— maths: maximum absolute value
Chinese Mandarin:
振幅
(zhènfú)
— maths: maximum absolute value
Czech:
amplituda
— maths: maximum absolute value
Danish:
amplitude
— maths: maximum absolute value
Danish:
lokalt maksimum
— maths: maximum absolute value
Dutch:
amplitude
— maths: maximum absolute value
Esperanto:
amplitudo
— maths: maximum absolute value
Finnish:
amplitudi
— maths: maximum absolute value
Finnish:
laajuus
— maths: maximum absolute value
Finnish:
ääriväli
— maths: maximum absolute value
French:
amplitude
— maths: maximum absolute value
Galician:
amplitude
— maths: maximum absolute value
German:
Amplitude
— maths: maximum absolute value
Irish:
aimplitiúid
— maths: maximum absolute value
Italian:
ampiezza
— maths: maximum absolute value
Japanese:
振幅
— maths: maximum absolute value
Khmer:
អំព្លីទីត
(ʼɑmpliitiit)
— maths: maximum absolute value
Norwegian Bokmål:
amplitude
— maths: maximum absolute value
Norwegian Nynorsk:
amplitude
— maths: maximum absolute value
Portuguese:
amplitude
— maths: maximum absolute value
Romanian:
amplitudine
— maths: maximum absolute value
Romanian:
amplitudini
— maths: maximum absolute value
Russian:
амплиту́да
(amplitúda)
— maths: maximum absolute value
Serbo-Croatian:
amplituda
— maths: maximum absolute value
Slovene:
amplituda
— maths: maximum absolute value
Spanish:
amplitud
— maths: maximum absolute value
Swedish:
amplitud
— maths: maximum absolute value
Tagalog:
hagkis
— maths: maximum absolute value
Welsh:
arg
— maths: maximum absolute value
Armenian:
ամպլիտուդ
(amplitud)
— physics: maximum absolute value
Armenian:
լայնույթ
(laynuytʻ)
— physics: maximum absolute value
Asturian:
amplitú
— physics: maximum absolute value
Bulgarian:
амплитуда
(amplituda)
— physics: maximum absolute value
Catalan:
amplitud
— physics: maximum absolute value
Chinese Mandarin:
振幅
(zhènfú)
— physics: maximum absolute value
Danish:
amplitude
— physics: maximum absolute value
Dutch:
amplitude
— physics: maximum absolute value
Esperanto:
amplitudo
— physics: maximum absolute value
Finnish:
amplitudi
— physics: maximum absolute value
Finnish:
laajuus
— physics: maximum absolute value
Finnish:
ääriväli
— physics: maximum absolute value
French:
amplitude
— physics: maximum absolute value
Galician:
amplitude
— physics: maximum absolute value
German:
Amplitude
— physics: maximum absolute value
Greek:
πλάτος
(plátos)
— physics: maximum absolute value
Irish:
aimplitiúid
— physics: maximum absolute value
Italian:
ampiezza
— physics: maximum absolute value
Japanese:
振幅
— physics: maximum absolute value
Malay:
amplitud
— physics: maximum absolute value
Malayalam:
ആയതി
(āyati)
— physics: maximum absolute value
Norwegian Bokmål:
amplitude
— physics: maximum absolute value
Norwegian Nynorsk:
amplitude
— physics: maximum absolute value
Polish:
amplituda
— physics: maximum absolute value
Portuguese:
amplitude
— physics: maximum absolute value
Russian:
амплиту́да
(amplitúda)
— physics: maximum absolute value
Serbo-Croatian:
amplituda
— physics: maximum absolute value
Slovene:
amplituda
— physics: maximum absolute value
Spanish:
amplitud
— physics: maximum absolute value
Swedish:
amplitud
— physics: maximum absolute value
Tagalog:
hagkis
— physics: maximum absolute value
Vietnamese:
biên độ
— physics: maximum absolute value