acorn

/ˈeɪ.kɔɹn/

//ˈeɪ.kɔɹn// noun

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

"acorn" is a 5-letter English headword indexed on PlainSpell.

The verdict

“acorn” has 7 generated spelling variants in the English index at frequency #25,989. The variants make it a useful spelling check.

#25,989
frequency rank, English
3,931
“A” headwords
7
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The fruit of the oak, being an oval nut growing in a woody cup or cupule.

Corpus desk

Index EN-acorn · acorn · English

acorn · rank #25,989 · 7 variants · 20 confusables

  • FREQ-MID #25,989
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-MID 7 variants
  • BOOK-MID 3,931
  • PHOTO-FINISH aga

Nearest frequency peer: aga (+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.

Rank peers near misspelling magnet “acorn”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “acorn” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

acorn vs ARN
0% similar
acorn vs acre
60% similar
acorn vs Avon
40% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for acorn
PropertyValue
Headwordacorn
LanguageEnglish
Part of speechNoun
IPA/ˈeɪ.kɔɹn/
Letters5
Frequency rank#25,989
Misspellings tracked7
Confusable pairs20
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “acorn”

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).acornlands here:

#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. Same rarity band neighbours include “aga” (#25,990), “Ahmedabad” (#25,991), “Aiken” (#25,992). Among 3,931 “A” headwords, “acorn” is #25,989. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 7 spelling variants around acorn (IPA /ˈeɪ.kɔɹn/), anoun. Corpus frequency is #25,989 among 3,931 “A” headwords. Wiktionary lists 5 senses, so context still picks the gloss.

Our generated misspelling index lists 7 likely wrong-spelling variants for acorn, with forms such as "accorn", "aconr", and "acornn". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 20 confusable-pair relationships, "ARN", "acre", "Avon", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English acorn, an alteration (after corn) of earlier *akern, from Old English æcern (“acorn, oak-mast”), from Proto-West Germanic *akarn, from Proto-Germanic *akraną (“fruit; acorn, nut”), from Proto-Indo-European *h₂égrō (“berry”). Cognates Cog… The correct English form is acorn, spelled A-C-O-R-N.

Definition

  1. 1
    The fruit of the oak, being an oval nut growing in a woody cup or cupule.
  2. 2
    A cone-shaped piece of wood on the point of the spindle above the vane, on the mast-head.
  3. 3
    See acorn-shell.
  4. 4
    The glans penis.
  5. 5
    A testicle.

Recorded use

Wiktionary example

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

  1. The Romans, likewise, represented the uncouth Priapus—the god of rustic fertility and sexual assault—as comically well endowed, with his acorn showing.

Etymology

From Middle English acorn, an alteration (after corn) of earlier *akern, from Old English æcern (“acorn, oak-mast”), from Proto-West Germanic *akarn, from Proto-Germanic *akraną (“fruit; acorn, nut”), from Proto-Indo-European *h₂égrō (“berry”). Cognates Cognate with Scots aicorn (“acorn”), Dutch aker (“acorn”), German Ecker (“acorn”), Danish agern (“acorn”), Faroese and Icelandic akarn (“acorn”), Norwegian Nynorsk åkorn (“acorn”), Gothic 𐌰𐌺𐍂𐌰𐌽 (akran, “fruit”); Irish airne (“sloe”), Welsh aeron (“berries; small fruits”), eirin (“plums”), Latgalian ūga (“berry”), Latvian oga (“berry”), Lithuanian uoga (“berry”), Belarusian я́гада (jáhada, “berry”), Bulgarian, Russian, and Ukrainian я́года (jáhoda, “berry”), Czech and Slovak jahoda (“strawberry”), Macedonian ја́года (jágoda, “strawberry”), Polish and Slovene jagoda (“berry”), Serbo-Croatian ја̏года, jȁgoda (“strawberry”), Tocharian A and Tocharian B oko (“fruit”). Not related to Old English āc (“oak”), corn (“corn, seed”) or Middle English acquerne.

This word in other languages

bellota(Español)gland(Français)Eichel(Deutsch)bolota(Português)

Common misspellings

Also misspelled as:

  • accorn
  • aconr
  • acornn
  • acorrn
  • acron
  • aocrn
  • caorn

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of acorn - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

accorn1aconr2acornn1acorrn1acron2aocrn2caorn2
Edit distance from "acorn"

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 "acorn"?
"acorn" is spelled A-C-O-R-N. The IPA pronunciation is /ˈeɪ.kɔɹn/.
What does "acorn" mean?
As a noun, "acorn" means: The fruit of the oak, being an oval nut growing in a woody cup or cupule.
What words are commonly confused with "acorn"?
"acorn" is commonly confused with "ARN", "acre", "Avon". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "acorn"?
The IPA (International Phonetic Alphabet) transcription for "acorn" is /ˈeɪ.kɔɹn/. 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 "acorn"?
From Middle English acorn, an alteration (after corn) of earlier *akern, from Old English æcern (“acorn, oak-mast”), from Proto-West Germanic *akarn, from Proto-Germanic *akraną (“fruit; acorn, nut”), from Proto-Indo-European *h₂égrō (“berry”). Co... 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 "acorn", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 5 letters (nearest by frequency rank).

Aiken#25,992alamo#25,995aloft#25,996Amman#25,999

Similar misspelling depth

Headwords with a similar count of attested misspellings (7 here; floor ≥5).

beset7 variantsbleep7 variantsBoyce7 variantstotem7 variants

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

Source: FrequencyWords open word-frequency list