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• en
  en

  noun

  the letter N, n.
• EN
  EN

  abbreviation

  endangered.
• en-
  en-

  a prefix occurring originally in loanwords from French and productive in English on this model, forming verbs with the general sense “to cause (a person or thing) to be in” the place, condition, or state named by the stem; more specifically, “to confine in or place on” (enshrine; enthrone; entomb ); “to cause to be in” (enslave; entrust; enrich; encourage; endear ); “to restrict” in the manner named by the stem, typically with the additional sense “on all sides, completely” (enwind; encircle; enclose; entwine ). This prefix is also attached to verbs in order to make them transitive, or to give them a transitive marker if they are already transitive (enkindle; enliven; enshield; enface ).
• -en
  -en

  a suffix formerly used to form transitive and intransitive verbs from adjectives (fasten; harden; sweeten ), or from nouns (heighten; lengthen; strengthen ).

en

¹ American  

[en] / ɛn /

noun

1. the letter N, n.

2. Also called nut.  Printing. half of the width of an em.

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adjective

1. Printing. having the area of an en quad or the length of an en.

   en quad; en dash.

EN ² American  

abbreviation

Biology, Ecology.

1. endangered.

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en- ³ American  

1. a prefix occurring originally in loanwords from French and productive in English on this model, forming verbs with the general sense “to cause (a person or thing) to be in” the place, condition, or state named by the stem; more specifically, “to confine in or place on” (enshrine; enthrone; entomb ); “to cause to be in” (enslave; entrust; enrich; encourage; endear ); “to restrict” in the manner named by the stem, typically with the additional sense “on all sides, completely” (enwind; encircle; enclose; entwine ). This prefix is also attached to verbs in order to make them transitive, or to give them a transitive marker if they are already transitive (enkindle; enliven; enshield; enface ).

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en- ⁴ American  

1. a prefix meaning “within, in,” occurring in loanwords from Greek.

   energy; enthusiasm.

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-en ⁵ American  

1. a suffix formerly used to form transitive and intransitive verbs from adjectives (fasten; harden; sweeten ), or from nouns (heighten; lengthen; strengthen ).

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-en ⁶ American  

1. a suffix used to form adjectives of source or material from nouns.

   ashen; golden; oaken.

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-en ⁷ American  

1. a suffix used to mark the past participle in many strong and some weak verbs.

   taken; proven.

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-en ⁸ American  

1. a suffix used in forming the plural of some nouns.

   brethren; children; oxen.

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-en ⁹ American  

1. a diminutive suffix.

   kitten; maiden.

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en- ¹ British  

prefix

1. (from nouns)

   1. put in or on

      entomb

      enthrone

   2. go on or into

      enplane

   3. surround or cover with

      enmesh

   4. furnish with

      empower

2. (from adjectives and nouns) cause to be in a certain condition

   enable

   encourage

   enrich

   enslave

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EN ² British  

abbreviation

1. enrolled nurse

2. English Nature

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-en ³ British  

suffix

1. cause to be; become; cause to have

   blacken

   heighten

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-en ⁴ British  

suffix

1. of; made of; resembling

   ashen

   earthen

   wooden

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en- ⁵ British  

prefix

1. in; into; inside

   endemic

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en ⁶ British  

/ ɛn /

noun

1. Also called: nut.  printing a unit of measurement, half the width of an em See also ennage

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Etymology

Origin of en¹

First recorded in 1785–95

Origin of en-³

Middle English < Old French < Latin in- in- ²

Origin of en-⁴

From Greek (often through Latin ); cognate with in- ¹, in- ²

Origin of -en⁵

Middle English, Old English -n- (as in Middle English fastnen, Old English fǣstnian “to make fast, fasten”); cognate with -n- of like verbs in other Germanic languages ( Old Norse fastna )

Origin of -en⁶

Middle English, Old English; cognate with Old High German -īn, Gothic -eins, Latin -īnus; see -ine ¹

Origin of -en⁷

Middle English, Old English; cognate with German -en, Old Norse -inn

Origin of -en⁸

Middle English; Old English -an, case ending of n-stem nouns, as in naman oblique singular, and nominative and accusative plural of nama “name”; akin to n-stem forms in other Indo-European languages, as in Latin nōmen, nōmin- “name”

Origin of -en⁹

Middle English, Old English, from neuter of -en ²

Example Sentences

The Charles de Gaulle, the flagship of the French navy, and its escorts were transiting through the Suez Canal en route to the southern Red Sea, the defence ministry said.

From Barron's • May 6, 2026

It’s the reset I reach for when I know groceries are en route and the counters feel a little gritty, a little sticky from a day of recipe testing.

From Salon • May 5, 2026

"In practice, what that led to was the removal of Indian jet fuel from the European market en masse. It just became too complicated," explains Amaar Khan of Argus Media.

From BBC • May 3, 2026

In October, Marimar Martinez, en route to a Chicago church to donate clothes, saw an unmarked vehicle she suspected was carrying federal agents.

From The Wall Street Journal • May 1, 2026

Now and then, Abuela takes my hand and says, “We are in Spain! Estamos en La Espanya!”

From "Across So Many Seas" by Ruth Behar