WordWeb Online

1. The 15th letter of the Roman alphabet
   - O

1. A nonmetallic bivalent element that is normally a colourless odourless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust
   - oxygen, atomic number 8
    
2. The blood group whose red cells carry neither the A nor B antigens
   "people with type O blood are universal donors"; "people with type group O blood are universal donors"
   - type O, group O

1. Used to express surprise
   - Christ, crikey [Brit], cripes, cor [Brit], crumbs [Brit], gosh, golly, by George, by Jove, blimey [Brit], gorblimey [Brit], cor blimey [Brit], my, holy cow, holy mackerel, holy smoke, holy moley, holy moly, fancy [Brit], good grief, goodness, goodness me, Gordon Bennett, gracious, gracious me, fancy that, god, my word, oh, ah, oh boy, jeez, geez, strewth [Brit], struth [Brit], yikes, I'll be blowed [Brit], blow me [Brit], Holy-dooly [Austral], heck, blooming heck [Brit], jeepers, jeepers creepers, marry [archaic], well I never, heavens, good heavens, my goodness, Jesus, bejesus [N. Amer]

Derived forms: Os, os

Type of: alphabetic character, blood group, blood type, chemical element, element, gas, letter, letter of the alphabet

Part of: air, H2O, Latin alphabet, ozone, Roman alphabet, water

Encyclopedia: O O, Yeah! Ultimate Aerosmith Hits O, ce veste minunata O, Vrba O, Yeah! The Ultimate Aerosmith Hits O, the Oprah Magazine O,p'-DDD O, ce veste minunata! O, ce veste minunată! O, The Oprah Magazine O, Canada O, Denmark O, Brother, Where Art Thou? O, Brother Where Art Thou? O, Little Town of Bethlehem O, Sailor O, Draconian Devil! O, Fortuna