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English Words Starting With R

5,802 entries — pick a word to see its definition, pronunciation, and usage.

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Noun Verb Adjective Adverb Plural noun Combining form Verb (transitive)Verb (intransitive)Verb (ambitransitive)

riviera
nounLow
/ˌrɪv.iˈeə.rə/a coastal region with a mild climate and scenic beauty, especially one frequented as a holiday resort.
riviera beach
nounLow (B2-C1 level proper noun/geographic term).
/ˌrɪv.iˈeə.rə biːtʃ/A proper noun referring to a specific town or geographic location, often with connotations of an upscale coastal resort area. Most commonly refers to the town of Riviera Beach in Florida, USA.
riviere
nounVery Rare / Obsolete
/ˌrɪv.iˈeər/A necklace of precious stones, especially diamonds.
riviere-du-loup
nounVery Low
/ˌrɪv.iˌeə dʊ ˈluː/A city in Quebec, Canada, located on the south shore of the Saint Lawrence River.
rivulet
nounC1
/ˈrɪv.jə.lət/a very small stream or flow of water.
rivulus
nounRare (Specialist)
/ˈrɪvjʊləs/a small tropical freshwater fish belonging to the family Rivulidae.
rix-dollar
nounVery Low (Historical)
/ˈrɪks ˌdɒlə/A silver coin that was used in various European countries from the 16th to the 19th centuries, particularly in the German states, Scandinavia, and the Netherlands.
riyadh
nounC1
/riːˈjɑːd/The capital and largest city of Saudi Arabia.
riyal
nounC2
/riːˈɑːl/The basic monetary unit of Saudi Arabia, Qatar, and Yemen.
riza shah pahlavi
nounC1
/ˈrɛzə ʃɑː ˈpɑːləviː/The name of the founder of the Pahlavi dynasty, who ruled as Shah of Iran from 1925 to 1941.
rizal
nounRare
/rɪˈzɑːl/A proper noun, most commonly referring to José Rizal (1861–1896), the national hero of the Philippines.
rizal day
nounLow
/rɪˈzæl deɪ/A national public holiday in the Philippines commemorating the life and martyrdom of José Rizal, a national hero.
rizz
nounVery High (Internet Slang / Youth Culture), Very Low (Formal/Written)
/rɪz/The quality or ability to attract a romantic or sexual partner through charisma, confidence, and charm.
rizzar
nounverb-transitiveVery Low
A non-standard, slang term meaning 'to irritate', 'to annoy', or 'to cause minor anger'. It often implies a persistent, nagging type of annoyance rather than severe anger.
rizzio
nounVery Low
/ˈrɪtsioʊ/A proper noun referring to David Rizzio, a 16th-century Italian courtier and private secretary to Mary, Queen of Scots.
rna
nounLow
/ˌɑːr en ˈeɪ/A molecule present in all living cells that carries instructions from DNA for controlling the synthesis of proteins.
rna polymerase
nounC2
/ɑːr ɛn eɪ pɒˈlɪməreɪz/The enzyme responsible for synthesizing RNA from a DNA template during transcription.
rna synthetase
nounVery Low
/ˌɑːr ɛn ˈeɪ ˈsɪnθɪteɪz/An enzyme that catalyzes the synthesis of RNA from nucleotide substrates.
rna virus
nounMedium
/ˌɑːr en ˈeɪ ˈvaɪərəs/A virus whose genetic material is composed of ribonucleic acid (RNA).
rnase
nounLow/Very Specialized
/ˌɑːr ˈɛn eɪz/An enzyme that catalyzes the hydrolysis of RNA.

Showing 4181–4200 of 5802 words.