range of tones in the human voice Maritime Ship registration, the process by which a ship is documented Watercraft registration, compulsory registration of a watercraft with a government authority Registry organizations Indian Register of Shipping, an independent ship classification society, founded in India in 1975 International Register of Shipping, an independent classification society Korean Register of Shipping, a not-for-profit classification society founded in South Korea Lloyd's Register, a global engineering, technical and business services organisation and a maritime classification society Norwegian International Ship Register, a Norwegian ship register for Norwegian vessels Norwegian Ship Register, a domestic ship register for Norway Polish Register of Shipping, an independent classification society established in 1936 Russian Maritime Register of Shipping, an international classification society established in 1913 Other maritime uses USS Register, several United States Navy ships Naval Vessel Register, the official inventory of ships and service craft in custody of or titled by the United States Navy Technology Computing and telecommunications Register (C programming language), a reserved word (keyword) and type modifier Register (codebook), a codebook, a finite list of defined terms, used i.e. as a primary key in databases Hardware register, a placeholder for information about some hardware condition Status register, a collection of flag bits for a computer processor Processor register, a component inside a central processing unit for storing information Quantum register, the quantum mechanical analogue of a classical processor register Register signaling, in telecommunications Register.com, a domain registrar Other technologies Camera register or flange focal distance, distance from the mounting flange to the film plane of an interchangeable lens camera Cash register, a device for recording cash transactions and storing cash Image registration, process of transforming different sets of data into one coordinate system Printing registration, in color printing, the correlating of colors in a single image User registration, the process of becoming a registered user Other uses Register (surname), a list of people with the surname Register, Georgia, a town in The United States Register (air and heating), synonym of "grille", "return" in HVAC system See also Registered (disambiguation) Registrar (disambiguation) Registry (disambiguation)