# Einstein

> English word · Proper noun · IPA /ˈaɪnˌstaɪn/ · frequency rank #10,533

## Definitions
1. Albert Einstein, the world-famous 20th-century theoretical physicist who developed the theory of relativity.
2. A surname from German.

## Etymology
Borrowed from German Einstein.
* The common noun is an eponym of Albert Einstein.

## Easily confused with
- **Epstein** (https://plainspell.com/en/vs/einstein-vs-epstein)

## Common misspellings (12)
`einnstein`, `einsetin`, `einsstein`, `einsteinn`, `einsteni`, `einstien`, `einsttein`, `eintsein`, `eisntein`, `enistein`, `ienstein`, `ienstien`

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