Definition of E- (original) (raw)

often attributive

1

a

: the 5th letter of the English alphabet

b

: a graphic representation of this letter

c

: a speech counterpart of orthographic e

2

: the third tone of a C-major scale

3

: a graphic device for reproducing the letter e

4

: one designated e especially as the fifth in order or class

5

a

: a grade rating a student's work as poor and usually constituting a conditional pass

b

: a grade rating a student's work as failing

c

: one graded or rated with an E

6

: a transcendental number having a value to eight decimal places of 2.71828183 that is the base of natural logarithms

7

: something shaped like the letter E

Examples of e in a Sentence

Noun

a word that begins with an e a word that begins with e a song in the key of E

Word History

Etymology

Prefix

Middle English, from Anglo-French & Latin; Anglo-French, out, forth, away, from Latin, from ex-

Combining form

e-mail

First Known Use

Noun

before the 12th century, in the meaning defined at sense 1a

Time Traveler

The first known use of e was before the 12th century

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Cite this Entry

“E.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/e. Accessed 18 May. 2026.

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