foam

/foʊm/

//foʊm// noun

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

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

The verdict

“foam” is a regularly-used English word, ranked #9,898 in English word frequency and used as a noun.

#9,898
frequency rank, English
4
letters
5
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A substance composed of a large collection of bubbles or their solidified remains, especially

Visual similarity to commonly confused words

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

foam vs for
50% similar
foam vs fox
50% similar
foam vs fog
50% similar

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

Key facts for foam
PropertyValue
Headwordfoam
LanguageEnglish
Part of speechNoun
IPA/foʊm/
Letters4
Frequency rank#9,898
Misspellings tracked5
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “foam” sits in English frequency

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

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for foam is 4 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /foʊm/. Corpus data places it at rank #9,898 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 10 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 5 likely wrong-spelling variants for foam, with forms such as "faom", "ffoam", and "foamm". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 20 confusable-pair relationships, "for", "fox", "fog", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From Middle English fom, foom, from Old English fām, from Proto-West Germanic *faim, from Proto-Germanic *faimaz, from Proto-Indo-European *(s)poHy-m-os, from *(s)poH(y)- (“foam”). Cognate with German Feim (“foam”), Latin spūma (“foam”), Latin pūmex (“pumic… The correct English form is foam, spelled F-O-A-M.

Definition

  1. 1
    A substance composed of a large collection of bubbles or their solidified remains, especially
  2. 2
    A substance composed of a large collection of bubbles or their solidified remains, especially:
  3. 3
    A substance composed of a large collection of bubbles or their solidified remains, especially:
  4. 4
    A substance composed of a large collection of bubbles or their solidified remains, especially:
  5. 5
    A substance composed of a large collection of bubbles or their solidified remains, especially:
  6. 6
    A substance composed of a large collection of bubbles or their solidified remains, especially:
  7. 7
    A material formed by trapping pockets of gas in a liquid or solid.
  8. 8
    The sea.
  9. 9
    Fury, rage, ire.
  10. 10
    Sneakers.

Etymology

From Middle English fom, foom, from Old English fām, from Proto-West Germanic *faim, from Proto-Germanic *faimaz, from Proto-Indo-European *(s)poHy-m-os, from *(s)poH(y)- (“foam”). Cognate with German Feim (“foam”), Latin spūma (“foam”), Latin pūmex (“pumice”), Sanskrit फेन (phéna, “foam”), possibly Northern Kurdish fê (“epilepsy”).

This word in other languages

espuma(Español)écume(Français)Schaum(Deutsch)

Common misspellings

Also misspelled as: faom,ffoam,foamm,foma,ofam

Misspelling Pattern Breakdown

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

faom2ffoam1foamm1foma2ofam2
Edit distance from "foam"

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 "foam"?
"foam" is spelled F-O-A-M. The IPA pronunciation is /foʊm/.
What does "foam" mean?
As a noun, "foam" means: A substance composed of a large collection of bubbles or their solidified remains, especially
What words are commonly confused with "foam"?
"foam" is commonly confused with "for", "fox", "fog". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "foam"?
The IPA (International Phonetic Alphabet) transcription for "foam" is /foʊm/. 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 "foam"?
From Middle English fom, foom, from Old English fām, from Proto-West Germanic *faim, from Proto-Germanic *faimaz, from Proto-Indo-European *(s)poHy-m-os, from *(s)poH(y)- (“foam”). Cognate with German Feim (“foam”), Latin spūma (“foam”), Latin pūm... 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.

Using “foam”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is F-O-A-M - every other letter order is a misspelling in standard orthography.
  • Say it as /foʊm/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “for” - see the side-by-side comparison. foam vs for
  • Browse more English words and confusable pairs in the same reference. English words
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 FrequencyWords open word-frequency list