(n) (game) emulator
(n) Gay-Lussac's law
(n) cogeneration
co-generation
(n) course of study
(n) quotation mark
(n) coding system
(n) (comp) code programming
(n) (comp) code page switching
(n) corner cupboard
(n) corner cabinet
(n) cooperative house
(n) choral reading (reading aloud in a group)
(n) (comp) call waiting
(n) cold vortex
(n) (comp) coaxial cable
(n) Coxsackie virus
(n) cost per thousand
(n) cost performance
(n) bowling in a bowling alley that is lit up like a disco with lots of flashing lights (wasei: cosmic bowling)
(n) (comp) copy and paste
(n) (comp) copy protection
(n) commercial design
(n) commercial film
(n) commercial paper
(n) commuter service
(n) commuter marriage
(n) cornish boiler
(n) (comp) collating sort
(n) cholecalciferol
(n) collector's item