acidity
/əˈsɪd.ᵻ.ti/
"acidity" is a 7-letter English headword indexed on PlainSpell.
The verdict
“acidity” is a moderately-common English word, ranked #22,274 in English word frequency and used as a noun.
- #22,274
- frequency rank, English
- 7
- letters
- 10
- tracked misspellings
- 5
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The quality or state of being acid.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | acidity |
| Language | English |
| Part of speech | Noun |
| IPA | /əˈsɪd.ᵻ.ti/ |
| Letters | 7 |
| Frequency rank | #22,274 |
| Misspellings tracked | 10 |
| Confusable pairs | 5 |
| Source | Wiktionary (kaikki.org) |
Where “acidity” sits in English frequency
Spelling & Dictionary Insight
The English entry for acidity is 7 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /əˈsɪd.ᵻ.ti/. Corpus data places it at rank #22,274 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 4 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 10 likely wrong-spelling variants for acidity, with forms such as "accidity", "acdiity", and "aciddity". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 5 confusable-pair relationships, "acuity", "agility", "activity", and more, where similar look or sound leads writers to substitute one word for another in context.
Etymologically, the entry records: From French acidité, from Latin aciditātem, accusative singular of aciditās (“sourness, acidity”), from acidus (“sour, acid”). Equivalent to acid + -ity. The correct English form is acidity, spelled A-C-I-D-I-T-Y.
Definition
- 1The quality or state of being acid.
- 2Sourness; tartness; sharpness to the taste.
- 3Excessive acid quality, as in gastric secretions.
- 4A caustic, sour, biting, or bitter quality.
Etymology
From French acidité, from Latin aciditātem, accusative singular of aciditās (“sourness, acidity”), from acidus (“sour, acid”). Equivalent to acid + -ity.
Antonyms
This word in other languages
Common misspellings
Also misspelled as: accidity,acdiity,aciddity,aciditty,acidityy,acidiyt,acidtiy,aciidty,aicdity,caidity
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of acidity - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “acidity”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is A-C-I-D-I-T-Y - every other letter order is a misspelling in standard orthography.
- Say it as /əˈsɪd.ᵻ.ti/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “acuity” - see the side-by-side comparison. acidity vs acuity
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.