| rivet |
a metal bolt that pins metal plates or other objects together. [3 definitions] |
| Rn |
symbol of the chemical element radon. |
| roach1 |
a short form of "cockroach." |
| road |
a long, narrow course, often with a smooth surface, for vehicles and people to travel on from one place to another. Roads go through towns and also through the countryside. [2 definitions] |
| road map |
a map used by drivers that shows the streets, highways, and mileage in and between towns of an area. |
| roadrunner |
a fast North American bird that moves about on the ground instead of flying. The roadrunner has a long tail, a crest, and streaked feathers. |
| roadside |
the side or edge of a road. [2 definitions] |
| roam |
to move or travel around without a plan; wander. [2 definitions] |
| roan |
having a dark coat thickly sprinkled with white. [2 definitions] |
| roar |
to make a long cry or shout that is both deep and loud. [4 definitions] |
| roast |
to cook or bake with dry heat in an oven or over an open fire. [6 definitions] |
| rob |
to steal from by using force or threats. [2 definitions] |
| robber |
a person who robs or steals by using force. |
| robbery |
the act of stealing money or property from a person or place; the act of robbing. |
| robe |
a long, loose gown worn at certain ceremonies. [3 definitions] |
| robin |
a large North American songbird related to the thrush, with an orange-red breast, dark brown head and back, and a bright yellow bill. [2 definitions] |
| robot |
a machine that can perform some of the same tasks as a human being. |
| robust |
strong, healthy, and full of energy. [2 definitions] |
| rock1 |
a solid mass made up of minerals. Rock forms much of the earth's outer layer, including cliffs and mountains. [3 definitions] |
| rock2 |
to move strongly back and forth or from side to side. [6 definitions] |
| rocker |
one of the curved pieces on the bottom of a chair that allows it to have a rocking motion. [3 definitions] |