acme

/ˈæk.mi/

//ˈæk.mi// noun

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

"acme" is a 4-letter English headword indexed on PlainSpell.

The verdict

“acme” sits in 20 confusable pairs (corpus #33,104) as a noun. The look-alike neighbours are the real trap.

#33,104
frequency rank, English
3,931
“A” headwords
3
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A high point: the highest point of any range, the most developed stage of any process, or the culmination of any field or historical period.

Corpus desk

Index EN-acme · acme · English

acme · rank #33,104 · 3 variants · 20 confusables

  • FREQ-MID #33,104
  • LEN-MID 4 letters
  • VOW-2 2 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-LOW 3 variants
  • BOOK-MID 3,931
  • PHOTO-FINISH abnormality

Nearest frequency peer: abnormality (-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.

Frequency neighbours of confusable “acme”

Peers at similar corpus weight, separate from look-alike pairs below

corpus weight

What this shows Bars place “acme” against nearest ranked English headwords, not a reprint of the confusable-pair desk.

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).

acme vs AM
0% similar
acme vs AE
0% similar
acme vs are
50% similar

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

Key facts for acme
PropertyValue
Headwordacme
LanguageEnglish
Part of speechNoun
IPA/ˈæk.mi/
Letters4
Frequency rank#33,104
Misspellings tracked3
Confusable pairs20
SourceWiktionary (kaikki.org)

Corpus rank beside confusables of “acme”

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).acmelands 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 “abnormality” (#33,103), “addendum” (#33,106), “adsorption” (#33,108). Among 3,931 “A” headwords, “acme” is #33,104. Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for acme is neighbouring look-alikes ("AM", "AE", …), not just typos; it is anoun pronounced /ˈæk.mi/. Frequency #33,104 among 3,931 “A” headwords. 6 recorded senses keep meaning in play.

Our generated misspelling index lists 3 likely wrong-spelling variants for acme, with forms such as "accme", "acem", and "acmme". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 20 confusable-pair relationships, "AM", "AE", "are", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: Directly borrowed from Ancient Greek ἀκμή (akmḗ, “point, high point”). The correct English form is acme, spelled A-C-M-E.

Definition

  1. 1
    A high point: the highest point of any range, the most developed stage of any process, or the culmination of any field or historical period.
  2. 2
    A paragon: a person or thing representing such a high point.
  3. 3
    Full bloom or reproductive maturity.
  4. 4
    Sexual orgasm.
  5. 5
    Synonym of crisis, the decisive moment in the course of an illness.
  6. 6
    Alternative letter-case form of Acme, particularly as a threading format.

Recorded use

Wiktionary examples

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

  1. The Latin tong, euen whan it was, as the Grecians say, in ακμη, that is, at the hiest pitch of all perfitenesse.
  2. Eum.: Our Loves what are they But howerly Sacrifices, only wanting The prease and tumult of Solemnity? If then i'th' heat and Achme of Devotion We drink a new fiame in, can it be ought But to increase the Worship?

Etymology

Directly borrowed from Ancient Greek ἀκμή (akmḗ, “point, high point”).

This word in other languages

acmé(Español)acmé(Français)Höhepunkt(Deutsch)

Common misspellings

Also misspelled as:

  • accme
  • acem
  • acmme

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of acme - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

accme1acem2acmme1
Edit distance from "acme"

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 "acme"?
"acme" is spelled A-C-M-E. The IPA pronunciation is /ˈæk.mi/.
What does "acme" mean?
As a noun, "acme" means: A high point: the highest point of any range, the most developed stage of any process, or the culmination of any field or historical period.
What words are commonly confused with "acme"?
"acme" is commonly confused with "AM", "AE", "are". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "acme"?
The IPA (International Phonetic Alphabet) transcription for "acme" is /ˈæk.mi/. 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 "acme"?
Directly borrowed from Ancient Greek ἀκμή (akmḗ, “point, high point”). 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 "acme", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 4 letters (nearest by frequency rank).

agri#33,111Alla#33,112alms#33,114whiz#33,087

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

Source: FrequencyWords open word-frequency list