EN - What does EN mean?

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What Does En Mean?. Hill Street Studios/Getty Images

En is a language code which refers to the English language. Specifically, en is used in ISO 639-1. En is the first part of this code and refers to the English language. En is an example of one of 136 two-letter codes used to identify the world's major languages. The use of en is especially useful for sites that are in many languages. En, however, is not necessarily used on sites whose default language is English.

On the Internet En is sometimes used in the first part of a URL (web address).


In this example, en refers to the fact that the page is in English. Websites that have versions is a variety of languages often use en within the web address to indicate the English version:


This is an example of the German media outlet Deutsche Welle's English version of its site.

There are a number of other codes that are closely related to en for English. These include:

en-US: English as it is used in the United States of America. (IETF Language Tag)

enm: Middle English (ISO 639-2)

ang: Old English (ISO 639-2)

eng: English (ISO 639-2)

En as Prefix in Verbs

The prefix en is taken from Latin as introduced through the French. It is used to change adjectives and nouns into verbs. En can also be used as a prefix in a number of verbs meaning to include, allow or cause to happen, and to hold within:

entail: to involve or include as part of something

The story entails a complicated plot about a magician and a young lad.

enable: to empower someone to do something

People should be careful not to enable those who do others harm.

enrich: to make more meaningful

Reading books will enrich your life like no other experience. 

endanger: to put someone or something at risk

A number of species are endangered around the world. 

encourage: to convince others to do something through positive statements 

The teacher encouraged her students to read two books a month and keep a journal.

enclose: to be within an area or to be included with something

Enclosed you will find the instructions to complete the task.
The park encloses a vast wonderland of natural beauty.

enslave: to make someone a slave to something or someone

She felt enslaved by her sixty-hour weeks and the monotonous routine at work. 

En in Nouns

A number of common nouns begin with en these include:

engine: the motor of a car

Turn on the engine and let's get out of here!

engineer: a professional who focuses on technological aspects

We brought in an engineer to help us design an efficient cooling system.

enlargement: a picture or other design which has been increased in size

You can see from the enlargement of this photo that there are three buildings located in the square.

endeavor: an ambitious task

Despite the difficulties of the endeavor, the explorer continued onward.

En as a Prefix in Adjectives

Adjectives can be formed by adding ing or ed to a verb beginning with en to form an adjective.

encourage -> encouraging

It's an encouraging situation at the moment.

enclose -> enclosed

Please find the enclosed check for last month's rent.

En as Prefix in Medical Terminology

En is also used as a prefix in a number of parts of speech in the field of medicine: 

endocrine: (adjective) relating to 

Understanding the endocrine system is vital to understanding holistic medicine. 

endocardium: (noun) a lining in the heart

The endocardium lines the heart and forms the valves. 

En Quiz

Decide whether en is used as part of a URL, as a code, as part of a noun, or as a prefix of a verb or an adjective: 

  1. You can find information at en.directquotes.com
  2. I'll enclose some money in the next letter I send. 
  3. The encouraged students decided to take their driver's test at the end of the month.
  4. I think we'll have to find a new engineer for the project.
  5. Think of this endeavor as something that will shape your personality.
  6. The book is filed under en-653 on the top shelf. 
  7. The entertaining story kept the children spellbound for two hours. 
  8. I don't want to endanger anyone, but we need to find a way out.


  1. URL 
  2. prefix of a verb
  3. prefix of an adjective
  4. noun
  5. noun
  6. code
  7. prefix of an adjective
  8. prefix of a verb