to break up into pieces violently, or to cause something to do this: A bomb exploded at one of the capital's busiest railway stations this morning. He was driving so fast that his car tyre exploded. Compare. implode. Fewer examples. If you pull the pin out of a hand-grenade, it'll explode. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.