e

¹ American  

abbreviation

1. electron.

2. Physics. elementary charge.

---

E ² American  

[ee] / i /

Or e

noun

plural

E's, Es, e's, es

1. the fifth letter of the English alphabet, a vowel.

2. any spoken sound represented by the letter E or e, as in met, meet, mere, etc.

3. something having the shape of an E .

4. a written or printed representation of the letter E or e.

5. a device, as a printer's type, for reproducing the letter E or e.

---

e- ³ American  

1. variant of ex- occurring in words of Latin origin before consonants other than c, f, p, q, s, and t: .

   emit.

---

E ⁴ American  

Symbol.

1. the fifth in order or in a series.

2. (sometimes lowercase) (in some grading systems) a grade or mark, as in school or college, indicating the quality of a student's work is in need of improvement in order to be passing.

3. Music.

   1. the third tone in the scale of C major or the fifth tone in the relative minor scale, A minor.

   2. a string, key, or pipe tuned to this tone.

   3. a written or printed note representing this tone.

   4. (in the fixed system of solmization) the third tone of the scale of C major, called mi.

   5. the tonality having E as the tonic note.

4. (sometimes lowercase) the medieval Roman numeral for 250.

5. Physics, Electricity.

   1. electric field

   2. electric field strength.

6. Physics. energy.

7. Biochemistry. glutamic acid.

8. Logic. universal negative.

9. a proportional shoe width size narrower than EE and wider than D.

---

E. ⁵ American  

abbreviation

1. Earl.

2. Earth.

3. east.

4. Easter.

5. eastern.

6. engineer.

7. engineering.

8. English.

---

e ⁶ American  

Symbol.

1. Mathematics. a transcendental constant equal to 2.7182818 …, used as the base of natural logarithms; the limit of the expression (1+1/n ) n as n approaches infinity.

2. Logic. universal negative.

---

e- ⁷ American  

Sometimes E-

1. electric.

   e-bike.

2. electronic.

   e-book;

   e-cigarette.

3. on the internet; online.

   e-content;

   e-commerce.

4. involving electronic data transfer, especially over the internet.

   e-banking.

---

e. ⁸ American  

abbreviation

1. eldest.

2. Football. end.

3. engineer.

4. engineering.

5. entrance.

6. Baseball. error; errors.

---

E ⁹ American  

abbreviation

1. east.

2. eastern.

3. English.

4. excellent.

5. Expressway.

---

e ¹ British  

symbol

1. maths a transcendental number, fundamental to mathematics, that is the limit of (1 + 1 /n ) n as n increases to infinity: used as the base of natural logarithms. Approximate value: 2.718 282…; relation to π: e ^πi = –1, where i = √–1

2. electron

3. chess See algebraic notation

---

E. ² British  

abbreviation

1. Earl

---

e- ³ British  

prefix

1. out

   eviscerate

   egest

2. away

   elapse

   elongate

3. outside

   evaginate

4. completely

   evaporate

5. without

   ebracteate

---

e- ⁴ British  

prefix

1. electronic, indicating the involvement of the internet

   e-business

   e-money

---

E ⁵ British  

symbol

1. earth

2. East

3. English

4. Egypt(ian)

5. exa-

6. music

   1. a note having a frequency of 329.63 hertz ( E above middle C ) or this value multiplied or divided by any power of 2; the third note of the scale of C major

   2. a key, string, or pipe producing this note

   3. the major or minor key having this note as its tonic

7. physics

   1. energy

   2. electric field strength

   3. electromotive force

   4. Young's modulus (of elasticity)

8. logic a universal negative categorical proposition, such as no pigs can fly: often symbolized as SeP Compare A I 2 O 1

9. 1. a person without a regular income, or who is dependent on the state on a long-term basis because of unemployment, sickness, old age, etc

   2. ( as modifier ) See also occupation groupings

      E worker

---

abbreviation

1. Spain (international car registration)

2. informal the drug ecstasy

E- ⁶ British  

prefix

1. used with numbers indicating a standardized system within the European Union, as of recognized food additives or standard pack sizes See also E number

---

e ⁷ British  

/ iː /

noun

1. the fifth letter and second vowel of the modern English alphabet

2. any of several speech sounds represented by this letter, in English as in he, bet, or below

---

e Scientific  

/ ē /

1. An irrational number, with a numerical value of 2.718281828459…. It is mathematically defined as the limit of (1 + 1/n) ⁿ as n grows infinitely large. It is the base of natural logarithms and has many applications in mathematics, especially in expressions involving exponential growth and decay.

---

e- Cultural  

1. A prefix that stands for “electronic” and refers to information technologies, business, and almost anything connected to or transmitted over the Internet. Some examples of its use include e-business, e-commerce, e-book, and e-mail.

---

Etymology

Origin of e-

First recorded in 1985–90; shortening of electronic ( def. )