Optical Center, Optical Network Unit, Passive optical network, ADVA Optical Networking SE, Optical Society, Navy Precision Optical Interferometer, Halley Optical Probe Experiment, Air Force Maui Optical and Supercomputing observatory, Transitions Optical, GrandOptical, Sola Optical, American Optical, Nordic Optical Telescope, European Optical Society, Novacel Optical, Journal of the Optical Society of America, Optical Network Termination, 3.67 m Advanced Electro Optical System Telescope, Optical Carrier, Optical Valley New World, Optical Time Domain Reflectometer, Optical Access Network, International Scientific Optical Network, Fibre optique plastique, Optical Distribution Network, Optical Line Termination, Deep Space Optical Communications, Cambridge Optical Aperture Synthesis Telescope, Ultra Density Optical, Reconfigurable optical add drop multiplexer, Optical PAyload for Lasercomm Science, National Optical Astronomy Observatory, Optical Gravitational Lensing Experiment, Optical Communications and Sensor Demonstration, Synchronous Optical Network, Infrared Optical Telescope Array, Opticale, Frequency-Resolved Optical Gating, Correction optique de proximité, Pentax, Society of Photo-Optical Instrumentation Engineers

Electro-Optical Infrared Weather System, Optical, Spectroscopic, and Infrared Remote Imaging System, ACOG, Physical Review A, GEODSS, CARMENES, MOIRE, CASTOR, Optical viewfinder, Large UV/Optical/Infrared Surveyor, Reconnaissance optique de caractères, Buena Vista Imaging, PROCYON, Bausch & Lomb, Disque optique Nintendo, Israel–Myanmar_relations, بوسي_(تشيشير), القوات_الجوفضائية_الروسية, Karl_V_av_Frankrike, Religion_in_Uruguay, Prisión_de_Landsberg, Jamie_Borwick,_5th_Baron_Borwick, Фам_Минь_Ман,_Жан-Батист, Setrimonium_bromida, Chilean_Sea, سفارة_الولايات_المتحدة_في_إيطاليا, Pangburn_(Arkansas), List_of_Saekano_characters, KMMA_(FM), Harlem_River_Park, الصياد_الصيني_(زاحف), Aizawa_Mai, Florentius_of_Peterborough, Lista_över_flygplatser_i_Sverige, Taksin, CAST-128, Equine_anatomy, Central_African_Republic_at_the_2003_All-Africa_Games, Coal_in_India, Hipotesis_dokumen, Fencing_at_the_1900_Summer_Olympics_–_Men's_épée, Al-Qur'an, Waseda_University_Cheerleading_Club, Cupang_(ikan), Latrodectus_hasseltii, Консенсус, 3-я_бронетанковая_дивизия_(США), テューダー朝, The_Tower_(Dubai), 盆踊り

Optical Center, Optical Network Unit, Passive optical network, ADVA Optical Networking SE, Optical Society, Navy Precision Optical Interferometer, Halley Optical Probe Experiment, Air Force Maui Optical and Supercomputing observatory, Transitions Optical, GrandOptical, Sola Optical, American Optical, Nordic Optical Telescope, European Optical Society, Novacel Optical, Journal of the Optical Society of America, Optical Network Termination, 3.67 m Advanced Electro Optical System Telescope, Optical Carrier, Optical Valley New World, Optical Time Domain Reflectometer, Optical Access Network, International Scientific Optical Network, Fibre optique plastique, Optical Distribution Network, Optical Line Termination, Deep Space Optical Communications, Cambridge Optical Aperture Synthesis Telescope, Ultra Density Optical, Reconfigurable optical add drop multiplexer, Optical PAyload for Lasercomm Science, National Optical Astronomy Observatory, Optical Gravitational Lensing Experiment, Optical Communications and Sensor Demonstration, Synchronous Optical Network, Infrared Optical Telescope Array, Opticale, Frequency-Resolved Optical Gating, Correction optique de proximité, Pentax, Society of Photo-Optical Instrumentation Engineers, Electro-Optical Infrared Weather System, Optical, Spectroscopic, and Infrared Remote Imaging System, ACOG, Physical Review A, GEODSS, CARMENES, MOIRE, CASTOR, Optical viewfinder, Large UV/Optical/Infrared Surveyor, Reconnaissance optique de caractères, Buena Vista Imaging, PROCYON, Bausch & Lomb, Disque optique Nintendo, Israel–Myanmar_relations, بوسي_(تشيشير), القوات_الجوفضائية_الروسية, Karl_V_av_Frankrike, Religion_in_Uruguay, Prisión_de_Landsberg, Jamie_Borwick,_5th_Baron_Borwick, Фам_Минь_Ман,_Жан-Батист, Setrimonium_bromida, Chilean_Sea, سفارة_الولايات_المتحدة_في_إيطاليا, Pangburn_(Arkansas), List_of_Saekano_characters, KMMA_(FM), Harlem_River_Park, الصياد_الصيني_(زاحف), Aizawa_Mai, Florentius_of_Peterborough, Lista_över_flygplatser_i_Sverige, Taksin, CAST-128, Equine_anatomy, Central_African_Republic_at_the_2003_All-Africa_Games, Coal_in_India, Hipotesis_dokumen, Fencing_at_the_1900_Summer_Olympics_–_Men's_épée, Al-Qur'an, Waseda_University_Cheerleading_Club, Cupang_(ikan), Latrodectus_hasseltii, Консенсус, 3-я_бронетанковая_дивизия_(США), テューダー朝, The_Tower_(Dubai), 盆踊り, العلاقات_الإيرانية_المولدوفية, Камень, Richard_Quest, 臺北高等學校講堂, Augustus_Keppel, Milan_Martić, SMA_Negeri_1_Kediri, CCAA_women's_basketball_tournament, Эльче_(футбольный_клуб), Safiatuddin_dari_Aceh, Tratta_atlantica_degli_schiavi_africani, Garvin_County,_Oklahoma, 1876_Chicago_mayoral_elections, 1st_Philippine_Legislature, Guam_at_the_2009_East_Asian_Games, Etanol, Keuskupan_Cartago_di_Kosta_Rika, خليل_أبي_اللمع, Sang_Juara, Villaquirán_de_la_Puebla, كلية_ستانيسلاس_في_باريس, Newcomen_atmospheric_engine, Komando_Resor_Militer_064, 11-й_танковый_корпус_(СССР), 49th_Reserve_Division_(German_Empire), Tempat_pelelangan_ikan, Bahasa_Melayik_Dayak, Stasiun_kereta_api_Jordanhill, Sirio_(piroscafo), Keuskupan_Florida, Philippe_Soupault, Poséidon_(film,_2006), Port_Huron_Prowlers, Abierto_Mexicano_Telcel_2000, Cornelis_de_Houtman, Luca_Montezemolo, Empresa_de_Acueducto_y_Alcantarillado_de_Bogotá, (I_Think_I'm_Over)_Getting_Over_You, Garland, Opior_sulawesi, Hifazat_(film_1987), Rusia_en_el_Festival_de_la_Canción_de_Eurovisión, كونستانس_من_أراغون, Society_of_Professional_Journalists, Faculty_of_Veterinary_Sciences,_University_of_Buenos_Aires, Kepolisian_Daerah_Sulawesi_Selatan, The_Hurricane_(1999_film), Procynosuchus, Alfonso_Martínez_Alcázar, 2023_Pacific_typhoon_season, Kurvingrad, Australian_Recording_Industry_Association, Affect_consciousness, Уорд,_Лесли, مونتالي, Bahasa_isyarat_bayi, خط_طول_69°_غرب, BCS:_50_Years, Stasiun_Sumberlawang, Koichi_Wakata