antacid

/ænˈtæsɪd/

//ænˈtæsɪd// noun

"antacid" is a 7-letter English headword indexed on PlainSpell.

The verdict

“antacid” is uncommon English (frequency #82,045 among 3,931 “A” headwords), classed as a noun. The kind of spelling people second-guess.

#82,045
frequency rank, English
3,931
“A” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An agent that counteracts or neutralizes acidity, especially in the stomach.

Corpus desk

Index EN-antacid · antacid · English

antacid · rank #82,045 · 0 variants · 0 confusables

  • FREQ-RARE #82,045
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,931
  • PHOTO-FINISH anta

Nearest frequency peer: anta (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Long-tail ranks near “antacid”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “antacid” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for antacid
PropertyValue
Headwordantacid
LanguageEnglish
Part of speechNoun
IPA/ænˈtæsɪd/
Letters7
Frequency rank#82,045
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “antacid” in English

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).antacidfalls in this rarity band:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Rare peers in the same band: “anta” (#82,044), “antimalarial” (#82,046), “ansible” (#82,043). Among 3,931 “A” headwords, “antacid” is #82,045. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

antacid is uncommon English at frequency #82,045 among 3,931 “A” headwords, classed as anoun, transcribed /ænˈtæsɪd/. Rarity is why readers land here mid-draft. Gloss: "An agent that counteracts or neutralizes acidity, especially in the stomach.".

No generated misspelling entries exist for antacid in our index, a straightforward case of a spelling with little room for common typos. It is not paired with a close-neighbour confusable in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From anti- + acid. The correct English form is antacid, spelled A-N-T-A-C-I-D.

Definition

  1. 1
    An agent that counteracts or neutralizes acidity, especially in the stomach.

Recorded use

Wiktionary examples

These source excerpts show how antacid appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Until Tagamet (cimetidine), most major drug companies didn't take tummy troubles terribly seriously. Oh sure, Americans gorped down antacids almost like candy, but most pharmaceutical big wigs probably wrote that off to our penchant for eating junk food on the run.
  2. I'm on warm milk and laxatives Cherry-flavored antacids

Etymology

From anti- + acid.

This word in other languages

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

How do you spell "antacid"?
"antacid" is spelled A-N-T-A-C-I-D. The IPA pronunciation is /ænˈtæsɪd/.
What does "antacid" mean?
As a noun, "antacid" means: An agent that counteracts or neutralizes acidity, especially in the stomach.
How do you pronounce "antacid"?
The IPA (International Phonetic Alphabet) transcription for "antacid" is /ænˈtæsɪd/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "antacid"?
From anti- + acid. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "antacid", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 7 letters (nearest by frequency rank).

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list