soap
/soʊp/
"soap" is a 4-letter English headword indexed on PlainSpell.
The verdict
“soap” is a regularly-used English word, ranked #5,367 in English word frequency and used as a noun.
- #5,367
- frequency rank, English
- 4
- letters
- 5
- tracked misspellings
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A metallic salt derived from a fatty acid, commonly used in cleaning products.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | soap |
| Language | English |
| Part of speech | Noun |
| IPA | /soʊp/ |
| Letters | 4 |
| Frequency rank | #5,367 |
| Misspellings tracked | 5 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “soap” sits in English frequency
Spelling & Dictionary Insight
The English entry for soap is 4 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /soʊp/. Corpus data places it at rank #5,367 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 5 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 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
- 1A metallic salt derived from a fatty acid, commonly used in cleaning products.
- 2Some other substance, often a detergent or another surfactant, able to mix with both oil and water, used for cleaning.
- 3Money, specially when used as a bribe.
- 4A soap opera.
- 5A solid masonry unit or brick reduced in depth or height from standard dimensions.
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
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.
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
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Using “soap”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-O-A-P - every other letter order is a misspelling in standard orthography.
- Say it as /soʊp/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “SP” - see the side-by-side comparison. soap vs SP
- 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.