| royalty |
a member of a royal family; royal persons as a group. [3 definitions] |
| RR |
abbreviation of "railroad," all the trains, tracks, and equipment that make up a rail transportation system. [2 definitions] |
| rte. |
abbreviation of "route." |
| rub |
to use pressure on (a surface) with a back and forth motion. [5 definitions] |
| rubber1 |
a stretchy substance made from the dried sap or liquid from certain tropical plants. [4 definitions] |
| rubber band |
a narrow loop of rubber used to hold objects together. |
| rubbish |
material that is thrown away or useless; garbage. [2 definitions] |
| rubble |
Pieces of broken rock, brick, or other material. |
| rub elbows with |
mingle or mix with. |
| ruble |
the main unit of money of Russia and other countries of the former Soviet Union. |
| rub the wrong way |
to bother or annoy. |
| ruby |
a valuable, deep red stone used in making jewelry. [2 definitions] |
| rudder |
a movable blade at the rear end of a ship or airplane, used to control direction. |
| rude |
showing poor manners; not polite. [2 definitions] |
| ruff |
a high, round, stiff collar worn by men and women in the 1500s and 1600s. [2 definitions] |
| ruffle |
to disturb a smooth, even surface. [3 definitions] |
| rug |
a piece of thick material used to cover part of a floor. |
| rugged |
having a surface that is rough and broken. [4 definitions] |
| ruin |
complete destruction. [8 definitions] |
| rule |
a law or direction that guides behavior or action. [7 definitions] |
| rule out |
to decide not to include in the set of choices. |