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English Words Starting With R
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- ritz combination principle/ˈrɪts ˌkɒmbɪˈneɪʃən ˌprɪnsɪpəl/A principle in atomic physics stating that the wavenumber of any spectral line can be expressed as the difference between two terms, each characteristic of an atomic energy level.nounC2
- rivage/ˈrɪvɪdʒ/A literary or poetic term for the shore of a sea, river, or lake.nounVery Low
- rival/ˈraɪv(ə)l/A person, team, or organization competing with another for the same objective, prize, or superiority.adjectivenounverb+2B2
- rivalry/ˈraɪv(ə)lri/A state of competition between two or more people, groups, or entities, each striving to achieve the same goal or to be superior to the others.nounB2
- rivals, the/ˈraɪ.vəlz/A person, group, or thing competing with another for the same objective or for superiority in the same field of activity.nounC1
- rive/raɪv/To tear or rend apart violently; to split or cleave.verbverb-intransitiveverb-transitiveC2
- rivel/ˈrɪv(ə)l/(verb) To become wrinkled or contracted, especially due to drying or shrinking.nounVery Low
- riven/ˈrɪv.ən/split or torn apart violently; divided by conflict or disagreementadjectiveverbC2
- river/ˈrɪvə(r)/A large, natural flow of fresh water that moves continuously towards a sea, lake, or another river, typically contained within banks.nounhigh
- river basin/ˈrɪvə ˈbeɪsən/The area of land from which all water drains into a particular river and its tributaries.nounC1
- river birch/ˈrɪvə bɜːtʃ/A species of deciduous tree (Betula nigra) native to the eastern United States, known for its distinctive peeling bark and common growth along riverbanks and wetlands.nounLow
- river blindness/ˈrɪvə ˌblaɪndnəs/A parasitic disease caused by a worm and transmitted by blackflies, leading to severe itching and potential blindness, common near rivers in parts of Africa and the Americas.nounLow
- river bugging/ˈrɪvə ˈbʌɡɪŋ/The recreational activity of rowing or punting on a river, often at a leisurely pace and for enjoyment rather than sport.nounLow
- river carpsucker/ˈrɪvə ˈkɑːpˌsʌkə/A species of freshwater fish (Carpiodes carpio) native to North America, characterized by a sucker-like mouth and carp-like appearance.nounVery low
- river edge/ˈrɪv.ər ɛdʒ/The boundary or margin where the water of a river meets the land; the immediate land alongside a river.nounB2
- river forest/ˈrɪvə ˈfɒrɪst/A proper noun referring to a specific village in Cook County, Illinois, USA.nounLow (as a toponym), Very Low (as a descriptive term).
- river grove/ˈrɪv.ə ɡrəʊv/A small group or cluster of trees, such as willows or cottonwoods, growing on the banks or within the floodplain of a river.nounLow/Uncommon
- river horse/ˈrɪvə hɔːs/A literal translation of 'hippopotamus' (from Greek hippos 'horse' + potamos 'river'); used informally or descriptively for a hippopotamus.nounC1/C2
- river otter/ˈrɪvər ˈɒtə/A semiaquatic mammal native to North America (Lontra canadensis) that lives in and along freshwater rivers, lakes, and coasts.nounC2
- river red gum/ˌrɪv.ə ˈred ˌɡʌm/a large Australian eucalyptus tree (Eucalyptus camaldulensis) that grows along waterways.nounLow (Regional/Technical)
Showing 4141–4160 of 5802 words.