| rubicund |
red in complexion; ruddy. |
| rubidium |
a highly reactive chemical element of the alkali metal group that has thirty-seven protons in each nucleus, that occurs naturally only in compounds with oxygen and other elements, but that can be isolated as a liquid or very soft solid metal. (symbol: Rb) |
| ruble |
the chief monetary unit of Russia and other countries of the former Soviet Union, equaling one hundred kopecks. |
| rubric |
a law, class, or category, or a title indicating it. [5 definitions] |
| rub the wrong way |
to irritate or annoy. |
| ruby |
a deep red gemstone, or something made of this stone. [4 definitions] |
| ruche |
a strip of pleated or gathered trim, as of lace or fine muslin, usu. used as a trimming for the neck or wrists of a dress. |
| ruching |
a ruche or ruches. [2 definitions] |
| rucksack |
a strong bag hung on the back from shoulder straps, used by hikers and mountain climbers; knapsack. |
| ruckus |
(informal) a noisy, often angry, disturbance; commotion or row. |
| ruction |
(informal) a noisy quarrel or other disturbance; ruckus. |
| rudder |
a movable vertical blade at the rear end of a ship or airplane, used to control direction. [2 definitions] |
| rudderless |
combined form of rudder. |
| rudderpost |
the vertical post on which a rudder pivots; rudderstock. |
| ruddy |
having a healthy-looking, rosy complexion. [2 definitions] |
| ruddy duck |
a North American duck, the male of which has a reddish brown neck and upper plumage, a black crown, and white cheeks. |
| rude |
unmannerly or impolite. [5 definitions] |
| rudiment |
(usu. pl.) a basic element, idea, skill, or the like in a complex subject or activity. [3 definitions] |
| rudimentary |
of or pertaining to the basic or first principles; elementary. [2 definitions] |
| rue1 |
to regret, repent of, or feel sorry about. [3 definitions] |
| rue2 |
a fragrant flowering plant found in Europe and Asia, the evergreen leaves of which yield an oil formerly used in medicines. |