E

Ⅰ.

E [1] (also e) ► NOUN (pl. Es or E's) 1) the fifth letter of the alphabet. 2) denoting the fifth in a set. 3) Music the third note of the diatonic scale of C major.

Ⅱ.

E [2] ► ABBREVIATION 1) East or Eastern. 2) informal the drug Ecstasy or a tablet of Ecstasy. 3) Physics energy. 4) denoting products, in particular food additives, which comply with EU regulations.