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OPI

OPI may refer to:

  • Office of Primary Interest
  • OPI Products, a nail beauty product brand
  • Oremus Pro Invicem (from the Latin), That is : Let us Pray for each other (see List of Latin phrases (O))
  • Open Payment Initiative
  • Open Prepress Interface uses a network server to store images in order to reduce memory required for high-resolution document image layout.
  • Over the phone interpreting
  • Oral Proficiency Interview
  • OPI (organisation) Order of Perpetual Indulgence (see Sisters of Perpetual Indulgence)
  • Opi, Abruzzo, a comune in Italy
  • C. opilio, a species of Chionoecetes crab
  • Opi (instrument), an Igbo musical instrument
  • Opi (archaeological site) an Igbo community in Nsukka, Enugu State, Nigeria, the location of a prehistoric archaeological site
  • The Office of Police Integrity, an independent agency formed by the Victorian Government investigating police corruption
  • Online Provisioning Interface (Telecommunications: Intelligent Network element)
  • Oklahoma Policy Institute
Opi (archaeological site)

Opi is a community in Enugu State of South-Eastern Nigeria. It is populated by the Igbo people and located in Nsukka region. It is the location of a prehistoric archaeological site which contains iron smelting furnaces and slag dated to 750 BC. . Iron ore was smelted in natural draft furnaces and molten slag was drained through shallow conduits to collecting pits forming huge slag blocks weighing up to 47 kg. The operating temperatures are estimated to have varied between 1,155 and 1,450 °C.