10-letter words starting with ro
- roughrider — a person who breaks horses to the saddle.
- round arch — an arch formed in a continuous curve, especially in a semicircle.
- round clam — quahog.
- round down — express as previous whole number
- round file — circular file.
- round hand — a style of handwriting in which the letters are round, full, and clearly separated.
- round rock — a town in central Texas.
- round tape — (storage, jargon) Industry-standard 1/2-inch magnetic tape (7- or 9-track) on traditional circular reels. See macrotape, opposite: square tape.
- round trip — a trip to a given place and back again: Fares for round trips often have a discount.
- round turn — a complete turn of a rope or the like around an object.
- roundabout — circuitous or indirect, as a road, journey, method, statement or person.
- roundheels — a prostitute.
- roundhouse — a building for the servicing and repair of locomotives, built around a turntable in the form of some part of a circle.
- roundtable — a number of persons gathered together for conference, discussion of some subject, etc., and often seated at a round table.
- rouseabout — an unskilled labourer in a shearing shed
- roussillon — a historic region in S France, on the border of Spain and the Mediterranean Sea.
- roustabout — a wharf laborer or deck hand, as on the Mississippi River.
- route-ring — any of various tools or machines for routing, hollowing out, or furrowing.
- routemarch — march in which a unit retains its column formation but individuals are allowed to break step.
- routinised — to develop into a regular procedure.
- routinized — to develop into a regular procedure.
- row vector — a collection of numbers, as the components of a vector, written horizontally.
- rowanberry — a mountain ash tree
- rowlandson — Thomas, 1756–1827, English caricaturist.
- roy rogers — a nonalcoholic cocktail of ginger ale and grenadine, garnished with a maraschino cherry: a child's drink, served especially to a boy.
- royal anne — a variety of sweet cherry having yellow fruit tinged with red.
- royal blue — a deep blue, often with a faint reddish tinge.
- royal duke — a duke who is also a royal prince, being a member of the royal family
- royal fern — a coarse fern, Osmunda regalis, having tall, upright fronds.
- royal fizz — a beverage consisting of gin, lemon juice, sugar, and an egg.
- royal lily — a lily, Lilium regale, of western China, having fragrant flowers about six inches (15 cm) wide that are white inside, lilac-colored or purplish outside, and have a yellow base.
- royal mast — a mast situated immediately above, and generally formed as a single spar with, a topgallant mast.
- royal mint — a British organization having the sole right to manufacture coins since the 16th century. In 1968 it moved from London to Llantrisant in Wales
- royal navy — the navy of the United Kingdom
- royal palm — any of several tall, showy feather palms of the genus Roystonea, as R. regia, having a trunk that is swollen in the middle.
- royal road — an auspicious or easy way or means to achieve something: the royal road to success.
- royalistic — relating to a royalist
- roystering — roister.
- roysterous — boisterous