# NEC

> English word · Phrase · frequency rank #19,399

## Definitions
1. Initialism of not elsewhere classified, used in classification codes such as Standard Industrial Classification, International Standard Classification of Occupations, DSM-IV-TR, DSM-5, ICD-9, and ICD-10.

## Etymology
Abbreviation.

## Easily confused with
- **NJ** (https://plainspell.com/en/vs/nec-vs-nj)
- **ni** (https://plainspell.com/en/vs/nec-vs-ni)
- **Ng** (https://plainspell.com/en/vs/nec-vs-ng)
- **nm** (https://plainspell.com/en/vs/nec-vs-nm)
- **NZ** (https://plainspell.com/en/vs/nec-vs-nz)
- **NT** (https://plainspell.com/en/vs/nec-vs-nt)
- **NP** (https://plainspell.com/en/vs/nec-vs-np)
- **nu** (https://plainspell.com/en/vs/nec-vs-nu)
- **NL** (https://plainspell.com/en/vs/nec-vs-nl)
- **nr** (https://plainspell.com/en/vs/nec-vs-nr)
- **NN** (https://plainspell.com/en/vs/nec-vs-nn)
- **not** (https://plainspell.com/en/vs/nec-vs-not)
- **new** (https://plainspell.com/en/vs/nec-vs-new)
- **now** (https://plainspell.com/en/vs/nec-vs-now)
- **non** (https://plainspell.com/en/vs/nec-vs-non)
- **nor** (https://plainspell.com/en/vs/nec-vs-nor)
- **net** (https://plainspell.com/en/vs/nec-vs-net)
- **NFL** (https://plainspell.com/en/vs/nec-vs-nfl)
- **nov** (https://plainspell.com/en/vs/nec-vs-nov)
- **NYC** (https://plainspell.com/en/vs/nec-vs-nyc)

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