Definition of

O

  1. (noun, body) the blood group whose red cells carry neither the A nor B antigens
  2. (noun, communication) the 15th letter of the Roman alphabet
  3. (noun, substance) a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust

via WordNet, Princeton University

Origin of the word O

  1. interj. of fear, surprise, admiration, etc., see oh. more
  2. blood type, 1926, originally "zero," denoting absence of A and B agglutinogens. more

via Online Etymology Dictionary, ©2001 Douglas Harper

People who say O

  • ipekdegirmencii @ali_sarman aynen onlar kartal ucurunca benımde aklıma o geldı :D

  • MANUROTTWEILAS si ay difencias si como en todos los grupos "GRANDES " no como en esos de 14 o 15 gatos locos que se llaman grupos Je Portensen Bien !!

  • EdgarMra RT @MarioNaniCunha: o glorioso Slb

  • ana_nataliia o que tiver que ser, um dia será.

via Twitter

Words that sound like O

oahu, oh, ohio, ooh, owe

via soundex() Hash Matches

Note: If you're looking to improve your vocabulary right now, we highly recommend Ultimate Vocabulary Software.

Word of the Moment

Match Point

(tennis) the final point needed to win a match (especially in tennis)