English Words Starting With R

• rock lobster

  nounLow
  /rɒk ˈlɒb.stə/A spiny lobster of the family Palinuridae, lacking large claws and often inhabiting rocky marine environments.
• rock maple

  nounLow (C1)
  /ˈrɒk ˈmeɪp(ə)l/A species of North American maple tree known for its very hard, dense wood, scientifically named Acer saccharum.
• rock mechanics

  nounLow
  /rɒk mɪˈkænɪks/The study of the mechanical behavior of rocks under stress.
• rock melon

  nounMedium
  /ˈrɒk ˌmel.ən/A type of melon with rough, netted skin and orange, aromatic flesh.
• rock milk

  nounVery low
  /rɒk mɪlk/A soft, white, earthy mineral, specifically a variety of calcium carbonate or hydrous magnesium silicate (like meerschaum), found in caverns or as a deposit.
• rock oil

  nounC2
  /ˌrɒk ˈɔɪl/A dated or historical term for petroleum; a naturally occurring, flammable liquid found in geological formations beneath the Earth's surface.
• rock pigeon

  nounMedium-Low
  /ˌrɒk ˈpɪdʒ.ɪn/A common species of pigeon (Columba livia) native to coastal cliffs, now widely feral in cities.
• rock plant

  nounMedium in gardening and botanical contexts; low in general everyday usage.
  /rɒk plɑːnt/A plant that grows naturally on or among rocks, often adapted to dry, alpine, or harsh conditions.
• rock rabbit

  nounLow (specialist/zoological)
  /ˈrɒk ˌræb.ɪt/A small, gregarious mammal of the family Procaviidae native to Africa and the Middle East, also called hyrax. They resemble rodents but are more closely related to elephants. Known for living in rocky outcrops and making distinctive calls.
• rock salmon

  nounLow (specialized, culinary/historical context)
  /ˌrɒk ˈsæmən/A commercial name for various types of fish, specifically dogfish or certain rays, sold as food.
• rock salt

  nounB2
  /ˈrɒk ˌsɔːlt/A type of salt that is mined from underground salt deposits, consisting of large, coarse crystals, often used for de-icing roads and in some food preparations.
• rock snake

  nounVery Low (rare, specialized)
  /ˈrɒk ˌsneɪk/A large, non-venomous constrictor snake, also known as the rock python or African rock python.
• rock spray

  nounLow
  /ˈrɒk spreɪ/A mixture of water and rock dust produced when mechanical tools break or cut into rock.
• rock springs

  nounLow (as a proper noun); Very Low (as a generic descriptor)
  /ˌrɒk ˈsprɪŋz/A specific place name, referring to a city in Sweetwater County, Wyoming, United States.
• rock squirrel

  nounC1
  /ˈrɒk ˌskwɪr.əl/A medium-sized ground-dwelling rodent of the genus Otospermophilus, native to arid, rocky regions of the southwestern United States and Mexico.
• rock star

  nounB2
  /ˈrɒk ˌstɑː/A famous and successful performer of rock music.
• rock steady

  nounB2
  /ˌrɒk ˈsted.i/Extremely stable, firm, reliable, and unwavering.
• rock thrush

  nounC1
  /ˈrɒk ˌθrʌʃ/A medium-sized songbird of the thrush family, typically having a spotted breast and often associated with rocky habitats.
• rock tripe

  nounVery Low
  /ˌrɒk ˈtraɪp/A type of edible lichen that grows on rocks and resembles leathery tripe.
• rock up

  verbC1
  /ˌrɒk ˈʌp/To arrive or appear somewhere, often in a casual, unannounced, or somewhat conspicuous manner.

Showing 4381–4400 of 5802 words.