e

[[t]i͟ː[/t]]

E's, e's

1) N-VAR E is the fifth letter of the English alphabet.

2) N-VAR In music, E is the third note in the scale of C major.

3) E or e is an abbreviation for words beginning with e, such as `English', `east', and `eastern'.

4) N-MASS E is the drug ecstasy, or a tablet of ecstasy. [INFORMAL]