v.1. To extinguish something with the breath or a gust of air: The child blew out the candles on the birthday cake. The lamp was flickering, so I blew it out.
2. To be extinguished by the breath or a gust of air: If the wind picks up, our fire will blow out.
3. To remove or burst something with powerful or violent force: The blast blew out all the windows on the block. The sudden pressure blew the pipes out.
4. To cause something to burst: The glass on the road blew out our tires. A nail got caught under the inner tube and blew it out.
5. To burst: The front tire blew out when we were driving down the road.
6. To cause something to stop functioning suddenly. Used of an electrical apparatus: Playing your stereo too loudly will blow your speakers out. The surge in current blew out the microchips in my computer.
7. To stop functioning suddenly. Used of an electrical apparatus: Because the light bulb was old, it blew out.
8. To erupt in an uncontrolled manner. Used of a gas or oil well: If the safety valve breaks, the well might blow out and spill oil everywhere.
9. To diminish; subside. Used reflexively of windy weather conditions: Until the storm blows itself out, we'll have to stay inside.