ab-initio
Definition, pronunciation, etymology, and usage for the English word. Free spelling reference powered by Wiktionary.
Letters
9 characters
Language
English
word origin
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Detailed reference entry for the English word "ab-initio", 9-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Hunspell error dictionaries, and usage frequency ranked against the top 100,000 English words in the Wordfreq corpus. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "ab-initio" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "ab-initio" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.
ab initio is anEnglishadv. It means: From the time when a law, legal right or decree, contract, ownership interest, partnership (etc.) comes into force. Pronounced /ˌæb ɪˈnɪʃ.i.oʊ/.
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|---|---|
| Headword | ab initio |
| Language | English |
| Part of speech | Adv |
| IPA | /ˌæb ɪˈnɪʃ.i.oʊ/ |
| Letters | 9 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Frequency rank visualization
Spelling & Dictionary Insight
The English entry for ab initio is 9 letters long, classified as anadv, and transcribed in the International Phonetic Alphabet as /ˌæb ɪˈnɪʃ.i.oʊ/. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader.Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.
No frequent misspelling variants are recorded for ab initio in our index, suggesting the orthography either follows predictable English patterns or the word is uncommon enough that typo corpora lack signal.It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.
Etymologically, the entry records: From Latin ab (“from”) + initiō, ablative singular of initium (“beginning”). Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is ab initio, spelled A-B- -I-N-I-T-I-O, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.
Definition
- 1From the time when a law, legal right or decree, contract, ownership interest, partnership (etc.) comes into force.
- 2Calculated from first principles, i.e. from basic laws without any further additional assumptions.
- 3Taken with no prior qualifications.
Etymology
From Latin ab (“from”) + initiō, ablative singular of initium (“beginning”).
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Nearby English words
Other entries that begin with the letter A in our English index: