septic
/ˈsep.tɪ̝k/
"septic" is a 6-letter English headword indexed on PlainSpell.
The verdict
“septic” is a moderately-common English word, ranked #22,214 in English word frequency and used as an adjective.
- #22,214
- frequency rank, English
- 6
- letters
- 9
- tracked misspellings
- 8
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Of or pertaining to sepsis.
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 | septic |
| Language | English |
| Part of speech | Adjective |
| IPA | /ˈsep.tɪ̝k/ |
| Letters | 6 |
| Frequency rank | #22,214 |
| Misspellings tracked | 9 |
| Confusable pairs | 8 |
| Source | Wiktionary (kaikki.org) |
Where “septic” sits in English frequency
Spelling & Dictionary Insight
The English entry for septic is 6 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /ˈsep.tɪ̝k/. Corpus data places it at rank #22,214 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 9 likely wrong-spelling variants for septic, with forms such as "esptic", "sepitc", and "sepptic". 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 8 confusable-pair relationships, "SETI", "static", "septum", and more, where similar look or sound leads writers to substitute one word for another in context.
Etymologically, the entry records: From Ancient Greek σηπτικός (sēptikós, “characterized by putridity”), from σηπτός (sēptós), from σήπω (sḗpō). The correct English form is septic, spelled S-E-P-T-I-C.
Definition
- 1Of or pertaining to sepsis.
- 2Causing sepsis or putrefaction.
- 3Of or pertaining to sewage or the disposal of sewage.
Etymology
From Ancient Greek σηπτικός (sēptikós, “characterized by putridity”), from σηπτός (sēptós), from σήπω (sḗpō).
This word in other languages
Common misspellings
Also misspelled as: esptic,sepitc,sepptic,septci,septicc,septtic,setpic,spetic,sseptic
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of septic - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
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 “septic”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-E-P-T-I-C - every other letter order is a misspelling in standard orthography.
- Say it as /ˈsep.tɪ̝k/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “SETI” - see the side-by-side comparison. septic vs SETI
- 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.