# EI

> English word · Noun · frequency rank #23,521

## Definitions
1. Initialism of employment insurance.
2. Initialism of extreme ironing.
3. Initialism of enhanced interrogation.
4. Initialism of enemy infantry.
5. Initialism of extra instruction.
6. Initialism of emotional intelligence.

## Easily confused with
- **ex** (https://plainspell.com/en/vs/ei-vs-ex)
- **et** (https://plainspell.com/en/vs/ei-vs-et)
- **EU** (https://plainspell.com/en/vs/ei-vs-eu)
- **em** (https://plainspell.com/en/vs/ei-vs-em)
- **el** (https://plainspell.com/en/vs/ei-vs-el)
- **en** (https://plainspell.com/en/vs/ei-vs-en)
- **er** (https://plainspell.com/en/vs/ei-vs-er)
- **EP** (https://plainspell.com/en/vs/ei-vs-ep)
- **ES** (https://plainspell.com/en/vs/ei-vs-es)
- **EV** (https://plainspell.com/en/vs/ei-vs-ev)
- **ew** (https://plainspell.com/en/vs/ei-vs-ew)
- **ey** (https://plainspell.com/en/vs/ei-vs-ey)
- **ez** (https://plainspell.com/en/vs/ei-vs-ez)
- **Ek** (https://plainspell.com/en/vs/ei-vs-ek)
- **eo** (https://plainspell.com/en/vs/ei-vs-eo)
- **EJ** (https://plainspell.com/en/vs/ei-vs-ej)
- **end** (https://plainspell.com/en/vs/ei-vs-end)
- **eye** (https://plainspell.com/en/vs/ei-vs-eye)
- **era** (https://plainspell.com/en/vs/ei-vs-era)
- **eve** (https://plainspell.com/en/vs/ei-vs-eve)

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