(n) entelechy (gre: entelecheia)
(n) (comp) endpoint
(n) Empire Day
(n) emphasize
emphasise
(n) organizer
organiser
(n) austenite
(n) made-to-order (wasei: order made)
custom-made
(P)
(n) autogyro (helicopter)
(n) (comp) auto dial
(n) (comp) auto login
auto-login
(n) overtime
(n) overnight
(n) overwrite
(n) override
(n) (comp) overlay (segment)
(n) (comp) overlay structure
(n) open side (rugby)
(n) airline deregulation policy (wasei: open sky)
(n) all-in-one
(n) allspice
(n) old boy
(n) Euler's theorem
(n) oil engine
(n) oil cooler
(n) oilcloth
(n) oil shale
(n) oil crisis, es. 1973 OPEC oil crisis (wasei: oil shock)
(n) oil stain
(n) oilstone
(n) oiltanker