Words in english starting with R that are validated

• redheaded woodpecker — Noun – English ～ black-and-white North American woodpecker having a red head and neck
• Robert Woodrow Wilson — Noun – English ～ United States physicist honored for his work on cosmic microwave radiation (born in 1918)
• rusty woodsia — Noun – English ～ a common rock-inhabiting fern of northern temperate regions having rusty-brown stipes and lanceolate pinnate fronds
• Robert Woodward — Noun – English ～ United States chemist honored for synthesizing complex organic compounds (1917-1979)
• Robert Burns Woodward — Noun – English ～ United States chemist honored for synthesizing complex organic compounds (1917-1979)
• raw wool — Noun – English ～ wool in its natural condition; not refined or processed
• rock wool — Noun – English ～ a light fibrous material used as an insulator
• root word — Noun – English ～ (linguistics) the form of a word after all affixes are removed; "thematic vowels are part of the stem"
• reference work — Noun – English ～ a book to which you can refer for authoritative facts; "he contributed articles to the basic reference work on that topic"
• research worker — Noun – English ～ a scientist who devotes himself to doing research
• real world — Noun – English ～ the practical world as opposed to the academic world; "a good consultant must have a lot of experience in the real world"
• railroad worm — Noun – English ～ larvae bore into and feed on apples
• red worm — Noun – English ～ terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers
• ribbon worm — Noun – English ～ soft unsegmented marine worms that have a threadlike proboscis and the ability to stretch and contract
• Roman wormwood — Noun – English ～ glaucous herb of northeastern United States and Canada having loose racemes of yellow-tipped pink flowers; sometimes placed in genus Fumaria
• Roman wormwood — Noun – English ～ European wormwood; minor source of absinthe
• raw wound — Noun – English ～ a wound that exposes subcutaneous tissue
• rock wren — Noun – English ～ short-tailed bird resembling a wren
• rock wren — Noun – English ～ wren inhabiting badlands and mesa country of western United States and Mexico
• ruby-crowned wren — Noun – English ～ American kinglet with a notable song and in the male a red crown patch

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