English Proper noun WMO (UN) Initialism of World Meteorological Organization. Initialism of World Mime Organisation. Initialism of Wayanad Muslim Orphanage. Translations World Meteorological Organization Catalan: OMM f French: OMM (fr) f Spanish: OMM f Anagrams MOW, Mow, OMW, WOM, mow Wikiwand - on Seamless Wikipedia browsing. On steroids.