English Words Starting With O

• orchard valve

  nounVery Low
  /ˈɔː.tʃəd vælv/A valve, especially one designed for use in agricultural irrigation systems or contexts reminiscent of an orchard setting.
• orchardist

  nounLow
  /ˈɔːtʃədɪst/A person who owns or manages an orchard; a grower of fruit trees.
• orchardman

  nounRare
  /ˈɔː.tʃəd.mən/A person who owns, manages, or works in an orchard.
• orchectomy

  nounLow (Specialist/Medical)
  /ɔːˈkɛktəmi/The surgical removal of one or both testicles.
• orchestra

  nounB1
  /ˈɔː.kɪ.strə/A large group of musicians who play together on various instruments, typically including strings, woodwind, brass, and percussion sections.
• orchestrate

  verbverb-ambitransitiveB2
  /ˈɔː.kɪ.streɪt/To arrange or combine (different elements or components) into a coherent or effective whole, often in a complex manner.
• orchestration

  nounC1
  /ˌɔː.kɪˈstreɪ.ʃən/The act of arranging or writing a piece of music for performance by an orchestra.
• orchestrina

  nounVery Low / Obsolete
  /ˌɔː.kɪˈstriː.nə/A small, portable barrel organ or mechanical instrument designed to imitate the sound of an orchestra.
• orchestrion

  nounVery Low (C2)
  /ɔːˈkɛstrɪən/A large mechanical musical instrument, often housed in a cabinet, designed to imitate the sound of an orchestra, typically using automated instruments like pipes, percussion, and strings, played via a pinned barrel or music roll.
• orchid

  nounB1
  /ˈɔː.kɪd/A plant with complex, often brightly coloured and unusually shaped flowers, belonging to the Orchidaceae family.
• orchid family

  nounC1
  /ˈɔː.kɪd ˌfæm.ə.li/The large, diverse botanical family Orchidaceae, which includes flowering plants like orchids.
• orchid tree

  nounLow (Technical/Botanical)
  /ˈɔːkɪd triː/A tree belonging to the genus Bauhinia, often cultivated for its showy, orchid-like flowers.
• orchidaceae

  plural-nounVery Low (Scientific/Botanical)
  /ˌɔː.kɪˈdeɪ.si.iː/The scientific family name for the orchid family, encompassing all orchids.
• orchidectomy

  nounLow (technical/medical term)
  /ˌɔː.kɪˈdek.tə.mi/The surgical removal of one or both testicles.
• orchidology

  nounLow (Specialized Technical Term)
  /ˌɔː.kɪˈdɒl.ə.dʒi/The scientific study of orchids, which are a diverse family of flowering plants.
• orchidotomy

  nounExtremely Rare
  /ˌɔː.kɪˈdɒt.ə.mi/A surgical incision into the testis.
• orchiectomy

  nounC2 (Very Low Frequency)
  /ˌɔːkɪˈɛktəmi/A surgical procedure to remove one or both testicles.
• orchil

  nounZ
  /ˈɔːtʃɪl/A violet or purple dye obtained from certain lichens, used in coloring fabrics and in biological staining.
• orchis

  nounC1
  /ˈɔːkɪs/Any of numerous temperate-zone terrestrial orchids (family Orchidaceae), typically having fleshy tubers and a dense spike of flowers.
• orchitis

  nounLow
  /ɔːˈkaɪ.tɪs/Inflammation of one or both testicles.

Showing 1721–1740 of 3187 words.