# flex

> English word · Noun · IPA /flɛks/ · frequency rank #10,696

## Definitions
1. Flexibility, pliancy.
2. An act of flexing.
3. Any flexible insulated electrical wiring.
4. A flexible insulated electrical cord.
5. Flexible ductwork, typically flexible plastic over a metal wire coil to shape a tube.
6. A point of inflection.
7. An act or instance of flaunting something; a boast or brag; something considered impressive.

## Etymology
From Latin flexus, past participle of flecto (“to bend”).

## Easily confused with
- **fly** (https://plainspell.com/en/vs/flex-vs-fly)
- **fox** (https://plainspell.com/en/vs/flex-vs-fox)
- **flu** (https://plainspell.com/en/vs/flex-vs-flu)
- **foe** (https://plainspell.com/en/vs/flex-vs-foe)
- **Flo** (https://plainspell.com/en/vs/flex-vs-flo)
- **FTE** (https://plainspell.com/en/vs/flex-vs-fte)
- **free** (https://plainspell.com/en/vs/flex-vs-free)
- **fuel** (https://plainspell.com/en/vs/flex-vs-fuel)
- **flow** (https://plainspell.com/en/vs/flex-vs-flow)
- **Fred** (https://plainspell.com/en/vs/flex-vs-fred)
- **flip** (https://plainspell.com/en/vs/flex-vs-flip)
- **flux** (https://plainspell.com/en/vs/flex-vs-flux)
- **flop** (https://plainspell.com/en/vs/flex-vs-flop)
- **foes** (https://plainspell.com/en/vs/flex-vs-foes)
- **fret** (https://plainspell.com/en/vs/flex-vs-fret)
- **Frey** (https://plainspell.com/en/vs/flex-vs-frey)
- **Foxx** (https://plainspell.com/en/vs/flex-vs-foxx)
- **flue** (https://plainspell.com/en/vs/flex-vs-flue)
- **flor** (https://plainspell.com/en/vs/flex-vs-flor)
- **flog** (https://plainspell.com/en/vs/flex-vs-flog)

## Common misspellings (6)
`felx`, `fflex`, `flexx`, `fllex`, `flxe`, `lfex`

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