AHD

noun

By · According to Wiktionary data (CC BY-SA) ·

"ahd" is a 3-letter English headword indexed on PlainSpell.

The verdict

“AHD” is uncommon English (frequency #78,338 among 3,931 “A” headwords), classed as a noun. The kind of spelling people second-guess.

#78,338
frequency rank, English
3,931
“A” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Initialism of alveolar hydatid disease, with parasitic worms, in human and nonhuman animals.

Corpus desk

Index EN-ahd · AHD · English

AHD · rank #78,338 · 0 variants · 0 confusables

  • FREQ-RARE #78,338
  • LEN-MID 3 letters
  • VOW-1 1 vowel
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,931
  • PHOTO-FINISH Ahr

Nearest frequency peer: Ahr (+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 “AHD”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for AHD
PropertyValue
HeadwordAHD
LanguageEnglish
Part of speechNoun
Letters3
Frequency rank#78,338
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “AHD” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).AHDfalls in this rarity band:

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

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “Ahr” (#78,339), “agroforestry” (#78,336), “aggrandizement” (#78,335). Among 3,931 “A” headwords, “AHD” is #78,338. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

AHD is uncommon English at frequency #78,338 among 3,931 “A” headwords, classed as anoun. Rarity is why readers land here mid-draft. 4 senses are on record.

We couldn't generate a plausible misspelling set for AHD, since its letter sequence doesn't invite the usual edit-distance slips. No confusable counterpart is on file for this word, since no other headword is close enough in sound or shape to pair with it.

Our source data has no etymology on file for this entry, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct English form is AHD, spelled A-H-D.

Definition

  1. 1
    Initialism of alveolar hydatid disease, with parasitic worms, in human and nonhuman animals.
  2. 2
    Initialism of adenovirus hemorrhagic disease, which affects deer.
  3. 3
    Initialism of arteriosclerotic heart disease.
  4. 4
    Initialism of anti-handling device, to make naval mines and land mines more deadly.

Recorded use

Wiktionary example

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

  1. Near-synonyms: ASCVD, CAD, CHD, IHD

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 "AHD"?
"AHD" is spelled A-H-D.
What does "AHD" mean?
As a noun, "AHD" means: Initialism of alveolar hydatid disease, with parasitic worms, in human and nonhuman animals.
What language does "AHD" come from?
"AHD" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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 "AHD", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 3 letters (nearest by frequency rank).

Ahr#78,339ACG#78,325ZOG#78,305Zaw#78,301

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

Source: FrequencyWords open word-frequency list