English Words Starting With O

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

oarfish
nounRare
/ˈɔːfɪʃ/A long, thin, deep-sea fish of the genus Regalecus, characterized by a long dorsal fin and oar-like pelvic fins.
oarlock
nounLow
/ˈɔː.lɒk/A U-shaped device or pair of pins on the side of a rowing boat that holds an oar in place and serves as a fulcrum for rowing.
oarsman
nounLow
/ˈɔːzmən/A person who rows a boat, especially as a member of a crew.
oarweed
nounLow
/ˈɔːwiːd/A large brown seaweed, especially of the genus Laminaria, with long, flat, strap-like fronds.
oasis
nounC1
/əʊˈeɪsɪs/A fertile or green spot in a desert or arid region where water is found.
oast
nounLow (C2 Level)
/əʊst/A kiln used for drying hops, typically a round or conical building with a pointed roof.
oast-house
nounC1
/ˈəʊst ˌhaʊs/A building containing a kiln for drying hops as part of the brewing process.
oastler
nounVery Low
/ˈəʊs(t)lə/A worker who manages an oast house for drying hops, specifically in the brewing/malting industry.
oat
nounC1
/əʊt/A type of cereal plant (genus Avena) cultivated for its edible seeds, also the seed of this plant.
oat grass
nounLow
/ˈəʊt ɡrɑːs/A perennial grass species of the genus Arrhenatherum, especially Arrhenatherum elatius, resembling oats.
oatcake
nounLow
/ˈəʊtkeɪk/A flat, dry, unsweetened biscuit made primarily from oatmeal.
oater
nounLow
/ˈəʊtə/A film or television show about the American West, especially a low-budget or formulaic one.
oates
nounLow
/əʊts/A proper noun, primarily a surname of English origin.
oath
nounC1
/əʊθ/A solemn, formal promise, often invoking a divine witness.
oatmeal
adjectivenounB1
/ˈəʊt.miːl/A type of porridge made by boiling oats in water or milk, often eaten for breakfast.
oaxaca
nounC1/C2
/wəˈhæk.ə/A state in southern Mexico, known for its cultural heritage, indigenous populations, and distinctive cuisine.
oba
nounRare/Obscure
/ˈəʊbə/A title for a hereditary king, ruler, or chieftain, particularly in parts of West Africa (Nigeria, Benin, Togo), signifying traditional authority.
obadiah
nounLow (primarily as a proper noun)
/ˌəʊ.bəˈdaɪ.ə/A masculine given name of Hebrew origin meaning 'servant of God' or 'worshipper of God'.
obama
nounB2
/əʊˈbɑːmə/A proper noun referring to Barack Obama, the 44th President of the United States.
obamacare
nounMedium
/ˈəʊ.bə.mə.keə(ɹ)/A colloquial, often politically-charged term for the Patient Protection and Affordable Care Act (PPACA), a 2010 U.S. federal statute.

Showing 61–80 of 3187 words.