(n) endive
(n) empire
(n) motorcycle (wasei: auto-bike)
(P)
(n,vs) (1) overlay
(2) (comp) overlay (segment)
(n) cucumber kimchi (kor: oi kimch'i)
(n) oyster
(n) oilgas
(n) (uk) chambered nautilus (esp. species Nautilus pompilius)
(n) (uk) Mya arenaria oonogai (subspecies of soft-shell clam)
(n) wood briquet
(n) oxide
(n) (uk) fur seal (esp. the northern fur seal, Callorhinus ursinus)
(n) eyes mismatched in colour (color) (wasei: odd eye)
(n) Odyssey
(n) off-side
(P)
(n) off-time
(n) off mike
(n) off-line
(n) Opus Dei (Roman Catholic organization)
(n) (abbr) omelet with a filling of ketchup-seasoned fried rice (omelette) (wasei: omelet rice)
(n) (comp) Orion
(n) oleic acid
(n) on-site
(n) on-side
(n) on-mike
(n) (comp) on-line
(P)
(n) (1) carbide
(2) (calcium) carbide
(n) cowboy
(n) carboloy (alloy containing carbon, cobalt, and tungsten)
(n) carmine
