English Words Starting With O

• ocellation

  nounC2
  /ˌɒsɪˈleɪʃən/The presence or pattern of eyelike spots or markings.
• ocellus

  nounC2
  /əʊˈsɛləs/A simple, single-lensed eye found in invertebrates or a small eye-like marking on an animal's skin, wing, or feather.
• ocelot

  nounC2/Rare
  /ˈɒs.ɪ.lɒt/A medium-sized wild cat native to the Americas, with a distinctive spotted or striped coat.
• oche

  nounVery Low
  /ˈɒki/The line on the floor behind which a player must stand when throwing a dart.
• ocher

  adjectivenounverb-transitiveLow
  /ˈəʊkə(r)/A natural earth pigment varying from pale yellow to reddish-brown.
• ochlesis

  nounExtremely Rare
  /ɒkˈliːsɪs/A condition of illness or malaise caused by being in a crowded or congested place.
• ochlocracy

  nounC2
  /ɒkˈlɒkrəsi/Government by the mob; mob rule.
• ochlophobia

  nounC2
  /ˌɒklə(ʊ)ˈfəʊbiə/An irrational fear of crowds.
• ocho rios

  nounVery Low
  /ˌɒtʃəʊ ˈriːɒs/A coastal town and port in Jamaica, located in the parish of Saint Ann.
• ochoa

  nounLow
  /əʊˈtʃəʊə/A Spanish surname of Basque origin, also used as a given name.
• ochozath

  nounExtremely Low / Undefined
  The word 'ochozath' is not a standard English word. As an undefined/unrecognized term, it has no lexical meaning in modern English dictionaries.
• ochozias

  nounObsolete/Rare
  /ɒkəˈzaɪ.əs/A largely obsolete English term meaning 'watchfulness' or 'vigilance', derived from the state or act of being watchful.
• ochratoxin

  nounVery Low
  /ˌɒkrəˈtɒksɪn/A toxic mycotoxin produced by certain fungi, notably Aspergillus and Penicillium species.
• ochre

  nounverbB2
  /ˈəʊkə(r)/a natural earth pigment ranging in colour from yellow to deep orange or brown.
• ochrea

  nounVery low
  /ˈɒkrɪə/A protective sheath or tubular structure formed from stipules, encircling the stem at the base of a leaf, especially in plants of the dock family (Polygonaceae) and some palms.
• ochs

  nounZ (Extremely Rare)
  /ɒks/An uncommon spelling variant of 'oaks', the plural of oak (the tree), primarily found in place names and surnames; alternatively, a rare variant of 'ox', particularly the plural 'oxen', in historical or dialect contexts.
• ocicat

  nounRare
  /ˈɒsɪkat/A domestic cat breed that resembles a wild ocelot but is entirely domestic.
• ockeghem

  nounVery low
  /ˈɒkəɡɛm/Proper noun referring to the prominent 15th-century Franco-Flemish composer Johannes Ockeghem, a key figure in early Renaissance polyphony.
• ocker

  adjectivenounLow
  /ˈɒkə/A stereotypical uncultured, boorish, or aggressively nationalistic Australian man, often characterized by rough speech and behavior.
• ockham

  nounC2 (Highly specialised/rare)
  /ˈɒkəm/A surname, most famously belonging to William of Ockham (c.1287–1347), an English Franciscan friar and philosopher.

Showing 341–360 of 3187 words.