Definition of E in US English:

E

  • 1Earth.

  • 2East or Eastern.

    ‘139° E’
  • 3Easter.

  • 4informal The drug Ecstasy or a tablet of Ecstasy.

  • 5Engineer or engineering.

  • 6English.

  • 7in combination Electronic.

    ‘E-commerce’

Physics
  • 1Electric field strength.

  • 2Electromotive force.

  • 3Energy.

    ‘E = mc²’

Pronunciation

E

/i//ē/