testify
/ˈtɛstɪfaɪ/
"testify" is a 7-letter English headword indexed on PlainSpell.
The verdict
“testify” is a regularly-used English word, ranked #9,114 in English word frequency and used as a verb.
- #9,114
- frequency rank, English
- 7
- letters
- 11
- tracked misspellings
- 2
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - To make a declaration, or give evidence, under oath.
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 | testify |
| Language | English |
| Part of speech | Verb |
| IPA | /ˈtɛstɪfaɪ/ |
| Letters | 7 |
| Frequency rank | #9,114 |
| Misspellings tracked | 11 |
| Confusable pairs | 2 |
| Source | Wiktionary (kaikki.org) |
Where “testify” sits in English frequency
Spelling & Dictionary Insight
The English entry for testify is 7 letters long, classified as a verb, and transcribed in the International Phonetic Alphabet as /ˈtɛstɪfaɪ/. Corpus data places it at rank #9,114 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 11 likely wrong-spelling variants for testify, with forms such as "etstify", "tesitfy", and "tesstify". 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 2 confusable-pair relationships, "testing", "terrify", since the words sound or look close enough that writers reach for the wrong one mid-sentence.
Etymologically, the entry records: PIE word *tréyes From Middle English testifien, borrowed from Old French testifier, from Latin testificārī (“to bear witness”), from testis (“a witness”) + facere (“to make”). See -fy. The correct English form is testify, spelled T-E-S-T-I-F-Y.
Definition
- 1To make a declaration, or give evidence, under oath.
- 2To make a statement based on personal knowledge or faith.
- 3To be evidence of.
Etymology
PIE word *tréyes From Middle English testifien, borrowed from Old French testifier, from Latin testificārī (“to bear witness”), from testis (“a witness”) + facere (“to make”). See -fy.
Synonyms
This word in other languages
Common misspellings
Also misspelled as: etstify,tesitfy,tesstify,testfiy,testiffy,testifyy,testiyf,testtify,tetsify,tsetify,ttestify
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of testify - 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 “testify”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is T-E-S-T-I-F-Y - every other letter order is a misspelling in standard orthography.
- Say it as /ˈtɛstɪfaɪ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “testing” - see the side-by-side comparison. testify vs testing
- 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.