1. a violent bursting or blowing apart of something, as is caused by a bomb
2. a sudden loud sound
3. a sudden large or rapid increase in amount or extent

Examples

• The explosion destroyed several buildings in the downtown area.
• We heard a loud explosion coming from the construction site.
• There has been an explosion in the number of people using smartphones.
• The population explosion in the city has strained public services.
• His explosion of anger surprised everyone at the meeting.
• The fireworks created a spectacular explosion of colors in the sky.
• The gas leak caused a massive explosion at the factory.