21-letter words containing a, r, c, h, l, u
- rap over the knuckles — to reprimand
- rectangular hyperbola — a hyperbola with perpendicular asymptotes
- richard coeur de lion — ("Richard the Lion-Hearted"; "Richard Coeur de Lion") 1157–99, king of England 1189–99.
- roman catholic church — the Christian church of which the pope, or bishop of Rome, is the supreme head.
- secure hash algorithm —
- space shuttle orbiter — orbiter (def 1).
- structural psychology — psychology centering on the analysis of the structure or content of conscious mental states by introspective methods.
- sunday school teacher — someone who teaches at a Sunday school
- tartarian honeysuckle — an Asian honeysuckle, Lonicera tatarica, having fragrant, white to pink flowers.
- the household cavalry — a group of British soldiers on horseback who have the job of protecting the king or queen and their family
- throw sb a curve ball — If someone throws you a curve or throws you a curve ball, they surprise you by doing something that you do not expect.
- to be hard luck on sb — to be unfortunate or unlucky for someone
- undesirable discharge — a discharge under other than honorable conditions of a person from military service by administrative action.
- white-knuckle paddler — an inexpert and timid canoeist.
- william the conqueror — ("the Conqueror") 1027–87, duke of Normandy 1035–87; king of England 1066–87 (son of Robert I, duke of Normandy).