extrapolation

Name: extrapolation, English Word Data
Creator: Wiktionary
License: https://creativecommons.org/licenses/by-sa/4.0/

noun

By PlainSpell · According to Wiktionary data (CC BY-SA) · analyzed September 3, 2026

The verdict

“extrapolation” has 20 generated spelling variants in the English index at frequency #49,912. The variants make it a useful spelling check.

#49,912
frequency rank, English: 2,246
“E” headwords: 20
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A calculation of an estimate of the value of some function outside the range of known values.

Corpus desk

Index EN-extrapolation · extrapolation · English

extrapolation · rank #49,912 · 20 variants · 0 confusables

FREQ-MID #49,912
LEN-MEGA 13 letters
VOW-6 6 vowels
CONFUS-0 No pairs
VAR-HIGH 20 variants
BOOK-MID 2,246
PHOTO-FINISH extensible

Nearest frequency peer: extensible (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

exhilaration

50,093
exon

50,092
extensible

50,090
extrapolati…

50,089
falsify

50,088
FCO

50,085

What this shows “extrapolation” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Key facts for extrapolation
Property	Value
Headword	extrapolation
Language	English
Part of speech	Noun
Letters	13
Frequency rank	#49,912
Misspellings tracked	20
Confusable pairs	0
Source	Wiktionary (kaikki.org)

Frequency seat of misspelling magnet “extrapolation”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).extrapolationlands here:

#49,912

#1#100#1K#10K#100K

← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “extensible” (#49,911), “falsify” (#49,913), “exon” (#49,909). Among 2,246 “E” headwords, “extrapolation” is #49,912. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 20 spelling variants around extrapolation, anoun. Corpus frequency is #49,912 among 2,246 “E” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 20 likely wrong-spelling variants for extrapolation, with forms such as "etxrapolation", "exrtapolation", and "extarpolation". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. Our dataset records no confusable match here, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: Morphologically extrapolate + -ion The correct English form is extrapolation, spelled E-X-T-R-A-P-O-L-A-T-I-O-N.

Definition

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.

Recorded use

Wiktionary example

These source excerpts show how extrapolation appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

Casting further doubt on Kerner’s extrapolations from Gebhard’s data, it’s unclear what happened during those 21 minutes of foreplay. Blow jobs? Kissing? Role-playing? We don’t know.

Etymology

Morphologically extrapolate + -ion

This word in other languages

extrapolation(Français)Extrapolation(Deutsch)

Common misspellings

Also misspelled as:

etxrapolation
exrtapolation
extarpolation
extraoplation
extraploation
extrapoaltion
extrapolaiton
extrapolasion
extrapolatino
extrapolationn
extrapolatoin
extrapolattion
extrapollation
extrapoltaion
extrappolation
extrpaolation
extrrapolation
exttrapolation
exxtrapolation
xetrapolation

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of extrapolation - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

Edit distance from "extrapolation"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "extrapolation"?

"extrapolation" is spelled E-X-T-R-A-P-O-L-A-T-I-O-N.

What does "extrapolation" mean?

As a noun, "extrapolation" means: A calculation of an estimate of the value of some function outside the range of known values.

What are common misspellings of "extrapolation"?

Common misspellings include "etxrapolation", "exrtapolation", "extarpolation", "extraoplation", "extraploation". The correct spelling is "extrapolation".

What is the origin of the word "extrapolation"?

Morphologically extrapolate + -ion 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "extrapolation", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 13 letters (nearest by frequency rank).

grandstanding#49,951 dependability#49,866 immunological#49,999 indefatigable#50,002

Similar misspelling depth

Headwords with a similar count of attested misspellings (20 here; floor ≥5).

heartstrings20 variants contemptible20 variants bioengineering20 variants backtracking20 variants