MSDOS® or MS-DOS® /em-es-dosˈ/ (computing)

Microsoft disk operating system

• rational number
• rational numbers
• rationals
• ration book
• ration books
• ration card
• ration cards
• rationed
• rationing
• ration money
• rations
• ratios
• Ratitae
• ratite
• rat-kangaroo
• rat-kangaroos
• ratlin
• ratline
• ratlines
• ratling
• ratlings
• ratlins
• rat on
• ratoo
• ratoon