# interpolation

> English word · Noun · IPA /ɪnˌtɜː.pəˈleɪʃən/ · frequency rank #34,941

## Definitions
1. An abrupt change in elements, with continuation of the first idea.
2. The process of estimating the value of a function at a point from its values at nearby points.
3. The process of interpolating: including and processing externally-fetched data in a document or program.
4. That which is introduced or inserted; in contexts of content analysis of centuries-old texts, especially something foreign or spurious.
5. The use of a melody from a previously recorded song, but recreated rather than sampled from that recording.

## Etymology
From French interpolation, from Latin interpolatio. Morphologically interpolate + -ion.

## Easily confused with
- **interrogation** (https://plainspell.com/en/vs/interpolation-vs-interrogation)

## Common misspellings (20)
`inetrpolation`, `innterpolation`, `inteprolation`, `interoplation`, `interploation`, `interpoaltion`, `interpolaiton`, `interpolasion`, `interpolatino`, `interpolationn`, `interpolatoin`, `interpolattion`, `interpollation`, `interpoltaion`, `interppolation`, `interrpolation`, `intrepolation`, `intterpolation`, `itnerpolation`, `niterpolation`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/interpolation