# extrapolation

> English word · Noun · frequency rank #49,912

## Definitions
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.

## Etymology
Morphologically extrapolate + -ion

## Common misspellings (20)
`etxrapolation`, `exrtapolation`, `extarpolation`, `extraoplation`, `extraploation`, `extrapoaltion`, `extrapolaiton`, `extrapolasion`, `extrapolatino`, `extrapolationn`, `extrapolatoin`, `extrapolattion`, `extrapollation`, `extrapoltaion`, `extrappolation`, `extrpaolation`, `extrrapolation`, `exttrapolation`, `exxtrapolation`, `xetrapolation`

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