em

/ˈɛm/

//ˈɛm// noun

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

"em" is a 2-letter English headword indexed on PlainSpell.

The verdict

“em” sits in 20 confusable pairs (corpus #2,623) as a noun. The look-alike neighbours are the real trap.

#2,623
frequency rank, English
2,246
“E” headwords
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The name of the Latin script letter M/m.

Corpus desk

Index EN-em · em · English

em · rank #2,623 · 0 variants · 20 confusables

  • FREQ-COMMON #2,623
  • LEN-SHORT 2 letters
  • VOW-1 1 vowel
  • CONFUS-HIGH 20 pairs
  • VAR-0 0 variants
  • BOOK-MID 2,246
  • PHOTO-FINISH diet

Nearest frequency peer: diet (-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 neighbourhood for “em”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “em” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.

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).

em vs ex
50% similar
em vs et
50% similar
em vs EU
0% similar

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

Key facts for em
PropertyValue
Headwordem
LanguageEnglish
Part of speechNoun
IPA/ˈɛm/
Letters2
Frequency rank#2,623
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “em” sits in English frequency

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).emlands here:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “diet” (#2,622), “favourite” (#2,624), “detail” (#2,621). Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for em is neighbouring look-alikes ("ex", "et", …), not just typos; it is anoun pronounced /ˈɛm/. Frequency #2,623 among 2,246 “E” headwords. 3 recorded senses keep meaning in play.

Zero misspellings are on record for em in our index, a sign its spelling follows regular English conventions. It also participates in 20 confusable-pair relationships, "ex", "et", "EU", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: Attested since 1808. In typography, the em is named after the em quadrat (later called em quad), from m quadrat, a metal type used in letterpress typesetting, which is as wide as the point size of the font. The correct English form is em, spelled E-M.

Definition

  1. 1
    The name of the Latin script letter M/m.
  2. 2
    A unit of measurement equal to the height of the type in use.
  3. 3
    A relative unit of sizing defined in terms of the font size.

Recorded use

Wiktionary examples

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

  1. It said, in a whispering, buzzing voice, "Gee-you-ess-ess-ay-dash-em-ee-ar-ar-wye-dash-em-eye-en-gee-oh-dash-pee-eye-pee-dash-pee-ee-ar-ar-wye-dash-pee-eye-en-gee-oh."
  2. Insert here a one-em dash or long dash.

Etymology

Attested since 1808. In typography, the em is named after the em quadrat (later called em quad), from m quadrat, a metal type used in letterpress typesetting, which is as wide as the point size of the font.

This word in other languages

eme(Español)emme(Français)

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 "em"?
"em" is spelled E-M. The IPA pronunciation is /ˈɛm/.
What does "em" mean?
As a noun, "em" means: The name of the Latin script letter M/m.
What words are commonly confused with "em"?
"em" is commonly confused with "ex", "et", "EU". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "em"?
The IPA (International Phonetic Alphabet) transcription for "em" is /ˈɛm/. 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 "em"?
Attested since 1808. In typography, the em is named after the em quadrat (later called em quad), from m quadrat, a metal type used in letterpress typesetting, which is as wide as the point size of the font. 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.

What to do next

You've looked up "em". Here's where to go from here.

  • "em" maps to 20 confusable pairs in this vintage; the highest-scored is "ex". View pair
  • Usage frequency rank #2,623 among English headwords in this corpus. Corpus statistics
  • Browse more English words in the "E" letter cohort. E–Z browse
  • PlainSpell rotates a curated Word of the Day from the English corpus, a passive way to discover vocabulary. Word of the Day

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

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.

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

Source: FrequencyWords open word-frequency list