extrapolation
/ɛkˌstɹæp.əˈleɪ.ʃən/noun
extrapolation is spelled E-X-T-R-A-P-O-L-A-T-I-O-N: 13 letters and 5 syllables. It appears about once in every 3 million words in written English, the 49,949th most frequent word form (wordfreq, 2021 data). As a noun, extrapolation means “A calculation of an estimate of the value of some function outside the range of known values” (English Wiktionary, September 2026). The plural of extrapolation is extrapolations.
How many letters and syllables are in extrapolation?
| Letters | 13: E-X-T-R-A-P-O-L-A-T-I-O-N |
|---|---|
| Syllables | 5 (from its American pronunciation) |
| In writing | about once in every 3 million words; the 49,949th most frequent word form |
| Wrong spellings searched | none measured in search |
| Rhymes with |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is extrapolation?
Extrapolation appears about once in every 3 million words in written English, the 49,949th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce extrapolation?
- US /ɛkˌstɹæp.əˈleɪ.ʃən/
- US /ɪk-/
Extrapolation has 5 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-extrapolation.wav, Wikimedia Commons (author and licence on each file's page).
What rhymes with extrapolation?
The 12 most written words on PlainSpell end in the same sounds as extrapolation from its last stressed vowel (/eɪʃən/):
- situation
- association
- population
- administration
- operation
- organization
- application
- location
- generation
- foundation
- conversation
- investigation
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of extrapolation
- extrapolations plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does extrapolation mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A calculation of an estimate of the value of some function outside the range of known values.
- 2
An inference about some hypothetical situation based on known facts.
- 3
The diametric opposite of interpolation.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Extrapolation in Spanish, French, German and Portuguese
In the sense calculation of an estimate:
| Language | Words |
|---|---|
| French | extrapolation |
| German | Extrapolation, Hochrechnung |
| Portuguese | extrapolação |
| Spanish | extrapolación |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.