e

I. noun (plural e's or es) Usage: often capitalized, often attributive Date: before 12th century 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 8. capitalized ecstasy 4 II. abbreviation 1. earth 2. east; easterly; eastern 3. edge 4. eldest 5. ell 6. empty 7. end 8. energy 9. erg 10. excellent