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interpolate

Definition, pronunciation, etymology, and usage for the English word. Free spelling reference powered by Wiktionary.

Detailed reference entry for the English word "interpolate", 11-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Wiktionary, and usage frequency ranked against an open word-frequency list covering the top 100,000 English words. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "interpolate" 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 "interpolate" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.

The verdict

“interpolate” is an uncommon English word, ranked #94,997 in English word frequency and used as a verb.

#94,997
frequency rank, English
11
letters

Dominant Wiktionary sense: To introduce (something) between other things; especially to insert (possibly spurious) words into a text.

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Key facts for interpolate
PropertyValue
Headwordinterpolate
LanguageEnglish
Part of speechVerb
IPA/ɪnˈtɜː.pəˌleɪt/
Letters11
Frequency rank#94,997
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “interpolate” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). interpolate lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for interpolate is 11 letters long, classified as a verb, and transcribed in the International Phonetic Alphabet as /ɪnˈtɜː.pəˌleɪt/. Corpus data places it at rank #94,997 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.

No misspelling variants are generated for interpolate in our index, suggesting the orthography follows predictable English patterns. 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 interpolātus, perfect passive participle of interpolō, see -ate (verb-forming suffix). Compare French interpoler. 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 interpolate, spelled I-N-T-E-R-P-O-L-A-T-E, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.

Definition

  1. 1
    To introduce (something) between other things; especially to insert (possibly spurious) words into a text.
  2. 2
    To estimate the value of a function between two tabulated points.
  3. 3
    During the course of processing some data, and in response to a directive in that data, to fetch data from a different source and process it in-line along with the original data.

Etymology

From Latin interpolātus, perfect passive participle of interpolō, see -ate (verb-forming suffix). Compare French interpoler.

Synonyms

This word in other languages

Frequency rank: #94,997 in English

Frequently Asked Questions

How do you spell "interpolate"?
"interpolate" is spelled I-N-T-E-R-P-O-L-A-T-E. The IPA pronunciation is /ɪnˈtɜː.pəˌleɪt/.
What does "interpolate" mean?
As a verb, "interpolate" means: To introduce (something) between other things; especially to insert (possibly spurious) words into a text.
How do you pronounce "interpolate"?
The IPA (International Phonetic Alphabet) transcription for "interpolate" is /ɪnˈtɜː.pəˌleɪt/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "interpolate"?
From Latin interpolātus, perfect passive participle of interpolō, see -ate (verb-forming suffix). Compare French interpoler. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “interpolate”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is I-N-T-E-R-P-O-L-A-T-E — every other letter order is a misspelling in standard orthography.
  • Say it as /ɪnˈtɜː.pəˌleɪt/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words

Nearby English words

Other entries that begin with the letter I in our English index:

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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.