# estimator

> English word · Noun · IPA /ˈɛs.tɪˌmeɪ.tə/ · frequency rank #38,829

## Definitions
1. A person who estimates, especially one who estimates costs
2. A function of a random sample of a population used to estimate some parameter of the whole population

## Etymology
From Latin aestimātor; equivalent to estimate + -or.

## Easily confused with
- **estimate** (https://plainspell.com/en/vs/estimate-vs-estimator)
- **estimated** (https://plainspell.com/en/vs/estimated-vs-estimator)
- **estimates** (https://plainspell.com/en/vs/estimates-vs-estimator)
- **estimation** (https://plainspell.com/en/vs/estimation-vs-estimator)

## Common misspellings (13)
`esitmator`, `esstimator`, `estiamtor`, `estimaotr`, `estimatorr`, `estimatro`, `estimattor`, `estimmator`, `estimtaor`, `estmiator`, `esttimator`, `etsimator`, `setimator`

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