E | meaning of E in Longman Dictionary of Contemporary English | LDOCE

From Longman Dictionary of Contemporary EnglishLetters & punctuationEE1, e /iː/ noun (plural E’s or e’s)    1 [countable, uncountable]SLA the fifth letter of the English alphabet2 [countable, uncountable] the third note in the scale of C major or the musical key based on this note3 [countable] a mark given to a student’s work to show that it is of very low quality4 [countable, uncountable] ecstasy (=an illegal drug)Electrical, NutritionEE2    1 British English technicalTEE the written abbreviation of earth (=a connection between a piece of electrical equipment and the ground)2 DFNthe abbreviation of E number 3 the written abbreviation of east or easterne-e-, E- /iː/ prefix  (electronic) used before another word to mean something that is done on or involves the Internet  e-shopping  e-commerceExamples from the Corpuse-• E-commerce was then seen as a booming economic area.• e-moneyFrom Longman Business Dictionarye-e- (also E-) prefixCOMPUTING electronic; used before another word to mean something that is sent between computers or is done using information sent between computers, especially over the InternetSchwab was the dominant e-broker last year, conducting 65% of its trades on-line (=by computer).Hard copy (=documents on paper) has some functions which e-documents can never replace.EE written abbreviation for east