- riverA large and often winding stream which drains a land mass, carrying water down from higher areas to a lower point, oftentimes ending in another body of water, such as an ocean or in an inland sea.
- ripeOf a fruit, vegetable, seed, etc., ready for reaping or gathering; having attained perfection; mature.
- rivetA cylindrical mechanical fastener which is supplied with a factory head at one end and is used to attach multiple parts together by passing its bucktail through a hole and upsetting its end to form a field head.
- RipuarianAny of the Ripuarian tribal section of the Frank people (comprising several tribes), who after some migration inhabited this region, as opposed to the Salian branch.