Did you write WMD? I love Wikipedia for those pesky acronyms and initialisms. Search Wikipedia, and you will likely land on a disambiguation page like this: en.wikipedia.org/wiki/WMD. Which, in this case, tells me it might be short for: weapon of mass destruction or weighted mean in statistics or wiggle-match-dating or wiggle matching in carbon dating or Westmead railway station, Sydney, Australia, station code or Wymondham railway station, Wymondham, England, station code or World Malaria Day!