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acidity

/əˈsɪd.ɪ.ti/noun

acidity is spelled A-C-I-D-I-T-Y: 7 letters and 4 syllables. It appears 1.6 times per million words in written English, the 22,362nd most frequent word form (wordfreq, 2021 data). As a noun, acidity means “The quality or state of being acid” (English Wiktionary, September 2026). The plural of acidity is acidities.

How many letters and syllables are in acidity?

Letters7: A-C-I-D-I-T-Y
Syllables4 (from its American pronunciation)
In writing1.6 times per million words; the 22,362nd most frequent word form
Wrong spellings searchednone 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 acidity?

Acidity appears 1.6 times per million words in written English, the 22,362nd 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 acidity?

  • /əˈsɪd.ɪ.ti/
  • [-ɾi]

Acidity has 4 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: LL-Q1860_(eng)-Tesco250-acidity.wav, Wikimedia Commons (author and licence on each file's page).

Forms of acidity

  • acidities plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What does acidity mean?

The meanings the English Wiktionary records, quoted as written there (source below).

noun

  1. 1

    The quality or state of being acid.

  2. 2

    Sourness; tartness; sharpness to the taste.

    the acidity of lemon juice

  3. 3

    Excessive acid quality, as in gastric secretions.

  4. 4

    A caustic, sour, biting, or bitter quality.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Acidity in Spanish, French, German and Portuguese

In the sense quality or state of being acid:

LanguageWords
Frenchacidité
GermanAcidität, Azidität
Portugueseacidez
Spanishacidez

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.

Where does acidity come from?

From French acidité, from Latin aciditātem, accusative singular of aciditās (“sourness, acidity”), from acidus (“sour, acid”). Equivalent to acid + -ity.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

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