senile
/ˈsiːnaɪl/
"senile" is a 6-letter English headword indexed on PlainSpell.
The verdict
“senile” is a moderately-common English word, ranked #29,454 in English word frequency and used as an adjective.
- #29,454
- frequency rank, English
- 6
- letters
- 8
- tracked misspellings
- 18
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Of, or relating to old age.
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 | senile |
| Language | English |
| Part of speech | Adjective |
| IPA | /ˈsiːnaɪl/ |
| Letters | 6 |
| Frequency rank | #29,454 |
| Misspellings tracked | 8 |
| Confusable pairs | 18 |
| Source | Wiktionary (kaikki.org) |
Where “senile” sits in English frequency
Spelling & Dictionary Insight
The English entry for senile is 6 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /ˈsiːnaɪl/. Corpus data places it at rank #29,454 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 8 likely wrong-spelling variants for senile, with forms such as "esnile", "seinle", and "seniel". 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 18 confusable-pair relationships, "sense", "smile", "serie", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.
Etymologically, the entry records: 1660s; borrowed from French sénile, from Middle French senile, from Old French senile, from Latin senīlis (“of or pertaining to old age”), from senex (“old man”), ultimately from Proto-Indo-European *sénos (“old”). The correct English form is senile, spelled S-E-N-I-L-E.
Definition
- 1Of, or relating to old age.
- 2Exhibiting the deterioration in mind and body often accompanying old age; doddering.
Etymology
1660s; borrowed from French sénile, from Middle French senile, from Old French senile, from Latin senīlis (“of or pertaining to old age”), from senex (“old man”), ultimately from Proto-Indo-European *sénos (“old”).
Antonyms
This word in other languages
Common misspellings
Also misspelled as: esnile,seinle,seniel,senille,senlie,sennile,sneile,ssenile
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of senile - 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 “senile”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-E-N-I-L-E - every other letter order is a misspelling in standard orthography.
- Say it as /ˈsiːnaɪl/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “sense” - see the side-by-side comparison. senile vs sense
- 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.