soap

/soʊp/

//soʊp// noun

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

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

The verdict

“soap” has 5 generated spelling variants in the English index at frequency #5,367. The variants make it a useful spelling check.

#5,367
frequency rank, English
6,566
“S” headwords
5
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A metallic salt derived from a fatty acid, commonly used in cleaning products.

Corpus desk

Index EN-soap · soap · English

soap · rank #5,367 · 5 variants · 20 confusables

  • FREQ-COMMON #5,367
  • LEN-MID 4 letters
  • VOW-2 2 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-MID 5 variants
  • BOOK-DENSE 6,566
  • PHOTO-FINISH slept

Nearest frequency peer: slept (-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 “soap”

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

corpus weight

What this shows “soap” 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).

soap vs SP
0% similar
soap vs son
50% similar
soap vs spa
50% similar

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

Key facts for soap
PropertyValue
Headwordsoap
LanguageEnglish
Part of speechNoun
IPA/soʊp/
Letters4
Frequency rank#5,367
Misspellings tracked5
Confusable pairs20
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “soap”

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

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “slept” (#5,366), “spray” (#5,368), “sizes” (#5,365). Among 6,566 “S” headwords, “soap” is #5,367. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 5 spelling variants around soap (IPA /soʊp/), anoun. Corpus frequency is #5,367 among 6,566 “S” headwords. Wiktionary lists 5 senses, so context still picks the gloss.

Our generated misspelling index lists 5 likely wrong-spelling variants for soap, with forms such as "osap", "saop", and "soapp". 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, "SP", "son", "spa", 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 sope, sape, from Old English sāpe (“soap, salve”), from Proto-West Germanic *saipā, from Proto-Germanic *saipǭ, from Proto-Indo-European *seyb-, *seyp- (“to pour out, drip, trickle, strain”). Cognate with Scots saip, sape (“soap”), Sater… The correct English form is soap, spelled S-O-A-P.

Definition

  1. 1
    A metallic salt derived from a fatty acid, commonly used in cleaning products.
  2. 2
    Some other substance, often a detergent or another surfactant, able to mix with both oil and water, used for cleaning.
  3. 3
    Money, specially when used as a bribe.
  4. 4
    A soap opera.
  5. 5
    A solid masonry unit or brick reduced in depth or height from standard dimensions.

Recorded use

Wiktionary examples

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

  1. I tried washing my hands with soap, but the stain wouldn't go away.
  2. She went to the shop to buy soap, but they had run out.

Etymology

From Middle English sope, sape, from Old English sāpe (“soap, salve”), from Proto-West Germanic *saipā, from Proto-Germanic *saipǭ, from Proto-Indo-European *seyb-, *seyp- (“to pour out, drip, trickle, strain”). Cognate with Scots saip, sape (“soap”), Saterland Frisian Seepe (“soap”), West Frisian sjippe (“soap”), Dutch zeep (“soap”), German Low German Seep (“soap”), German Seife (“soap”), Danish sæbe (“soap”), Swedish såpa (“soap”), Norwegian Bokmål såpe (“soap”), Norwegian Nynorsk såpe (“soap”), Faroese sápa (“soap”), Icelandic sápa (“soap”), Finnish saippua (“soap”), Finnish suopa (“soft soap”). Related also to Old English sāp (“amber, resin, pomade, unguent”), Latin sēbum (“tallow, fat, grease”). See seep. Latin sāpō (“soap”) is a borrowing from the Germanic.

This word in other languages

jabón(Español)savon(Français)Seife(Deutsch)sabonete(Português)

Common misspellings

Also misspelled as:

  • osap
  • saop
  • soapp
  • sopa
  • ssoap

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of soap - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

osap2saop2soapp1sopa2ssoap1
Edit distance from "soap"

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 "soap"?
"soap" is spelled S-O-A-P. The IPA pronunciation is /soʊp/.
What does "soap" mean?
As a noun, "soap" means: A metallic salt derived from a fatty acid, commonly used in cleaning products.
What words are commonly confused with "soap"?
"soap" is commonly confused with "SP", "son", "spa". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "soap"?
The IPA (International Phonetic Alphabet) transcription for "soap" is /soʊp/. 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 "soap"?
From Middle English sope, sape, from Old English sāpe (“soap, salve”), from Proto-West Germanic *saipā, from Proto-Germanic *saipǭ, from Proto-Indo-European *seyb-, *seyp- (“to pour out, drip, trickle, strain”). Cognate with Scots saip, sape (“soa... 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 "soap", not the corpus desk frequency band.

Same letter count

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

sits#5,364beds#5,392grid#5,330earl#5,322

Similar misspelling depth

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

acres5 variantsjake5 variantscole5 variantsJamie5 variants

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

Source: FrequencyWords open word-frequency list