E2 Explained
E2, e2, E02, E.II, e or E-2 may refer to:
Science and technology
- E2 reaction, a type of elimination reaction
- Honda E2, one of the predecessors of Honda's ASIMO robot
- E2, a communications channel defined in the E-carrier standard
- G2 (mathematics) (old name E2 or E2), a group
Biology and medicine
Computing
- E2 (cipher), a block cipher submitted to the AES competition by NTT
- Tungsten E2, a business-class Palm OS-based handheld computer
- Motorola ROKR E2, a smartphone
- Everything2, a collaborative web-based community consisting of a database of interlinked user-submitted written material
Arts and entertainment
Television
- "E²", an episode of Star Trek: Enterprise
- MTV e2, a Canadian entertainment news program that airs on MTV Canada
- E2 (TV channel), a Turkish TV channel
- e2 by SKY PerfecTV!, a satellite television service in Japan operated by SKY Perfect
Transport
Air
Rail
- E2 Series Shinkansen, a Japanese high-speed train
- EMC E2, an early American passenger-train diesel locomotive
- LB&SCR E2 class, a class of 0-6-0T steam locomotives designed by Lawson Billington
- PRR E2, an American PRR 4-4-2 locomotive
- CNW Class E-2, a class of 4-6-2 steam locomotives built by the American Locomotive Company in 1923
Roads and footpaths
Submarines
- HMS E2, an E-class submarine of the Royal Navy
- USS E-2, an E-class submarine of the US Navy
Other transport
Other uses
- E-2 visa, a type of US visa
- E2, a postcode district in the E postcode area for east London, England
- Private E-2, a pay grade for the rank of Private in the US Army
- E2 (nightclub), a nightclub in Chicago, US
- Eternity II puzzle, a puzzle competition
- E-II Holdings, Inc., an investment holding company formerly owned by Meshulam Riklis, and later by Carl Icahn
- E2 grade, an assessment of difficulty in rock climbing
See also