English Words Starting With O

• open position

  nounB2
  /ˌəʊ.pən pəˈzɪʃ.ən/A job vacancy that is available for someone to apply to and fill.
• open primary

  nounC2
  /ˌəʊ.pən ˈpraɪ.mə.ri/A primary election in which voters are not required to declare a party affiliation and can choose which party's primary ballot to vote in.
• open prison

  nounC1
  /ˌəʊ.pən ˈprɪz.ən/A prison with minimal security measures where prisoners are trusted not to escape and are allowed more freedom of movement.
• open punctuation

  nounC1
  /ˌəʊ.pən ˌpʌŋk.tʃuˈeɪ.ʃən/A style of punctuation in writing, especially in business letters, where minimal punctuation is used, omitting punctuation after abbreviations, salutations, and closures.
• open question

  nounB2-C1
  /ˌəʊ.pən ˈkwes.tʃən/An issue or matter that has not been definitively decided or resolved; a matter that is still uncertain and open to debate.
• open quote

  nounC1
  /ˈəʊpən ˈkwəʊt/The punctuation mark (") or (“) used to indicate the beginning of a quotation, direct speech, or a special term.
• open registry

  nounC2 (Very Low Frequency / Specialized)
  /ˌəʊ.pən ˈredʒ.ɪ.stri/A shipping register in which a country allows the registration of ships owned by foreign entities, with less stringent nationality requirements for owners and crew.
• open sandwich

  nounB1
  /ˌəʊpən ˈsænwɪdʒ/A single slice of bread with various savory toppings, eaten with a knife and fork.
• open sea

  nounC1
  /ˌəʊ.pən ˈsiː/The area of the ocean or sea that is far from land, not within territorial waters or near the coast.
• open season

  nounC1
  /ˌəʊ.pən ˈsiː.zən/A designated period during which hunting of a particular animal species is legally permitted.
• open secret

  nounC1
  /ˌəʊpən ˈsiːkrət/A piece of information that is officially or supposedly confidential but is widely known.
• open sentence

  nounC1/C2
  /ˌəʊpən ˈsentəns/A mathematical or logical statement containing at least one variable that becomes true or false when the variable is replaced by a specific value.
• open sesame

  nounLow
  /ˌəʊ.pən ˈses.ə.mi/A magical command that causes a sealed or hidden entrance to open.
• open set

  nounC2
  /ˌəʊpən ˈset/A set in topology where every point has a neighborhood contained entirely within the set; a foundational concept in mathematics, specifically in topology and analysis, denoting a collection of points with no boundary points included.
• open shop

  nounC1
  /ˌəʊ.pən ˈʃɒp/A workplace where employment is not conditional on membership in a labor union.
• open side

  nounMedium-Low
  /ˌəʊ.pən ˈsaɪd/A specific playing area or team tactical concept in sports, particularly in rugby union, referring to the wider side of the pitch relative to the position of a breakdown or scrum.
• open sight

  nounC1/C2 (Specialist)
  /ˌəʊ.pən ˈsaɪt/A simple, non-magnifying firearms aiming device consisting of a notch (rear) and a post or bead (front), with no adjustments for windage or elevation.
• open slather

  nounLow/Very Low
  /ˌəʊpən ˈslæðə/A situation where there are no restrictions, controls, or limitations; complete freedom to act or operate without hindrance.
• open space

  nounB1
  /ˌəʊ.pən ˈspeɪs/An area of land that is not built upon, preserved in a natural or undeveloped state, often for public use, recreation, or environmental protection.
• open stance

  nounC1
  /ˈəʊ.pən stɑːns/A preparatory body position, typically in sports or communication, where one stands with feet and/or body oriented outward or forward, suggesting receptiveness, readiness, or a particular tactical approach.

Showing 1381–1400 of 3187 words.