blow definition

1. a powerful stroke with the fist or a weapon
• examples: a blow on the head
2. an impact (as from a collision)
• examples: the bump threw him off the bicycle
3. forceful exhalation through the nose or mouth
• examples: he gave his nose a loud blow
• examples: he blew out all the candles with a single puff
4. exhale hard
• examples: blow on the soup to cool it down
5. be blowing or storming
• examples: The wind blew from the West
6. free of obstruction by blowing air through
• examples: blow one's nose
7. make a sound as if blown
• examples: The whistle blew
8. shape by blowing
• examples: Blow a glass vase
9. spend lavishly or wastefully on
• examples: He blew a lot of money on his new home theater
10. sound by having air expelled through a tube
• examples: The trumpets blew
11. play or sound a wind instrument
• examples: She blew the horn
12. cause air to go in, on, or through
• examples: Blow my hair dry
13. cause to move by means of an air current
• examples: The wind blew the leaves around in the yard
14. spout moist air from the blowhole
• examples: The whales blew
15. lay eggs
• examples: certain insects are said to blow
16. cause to be revealed and jeopardized
• examples: The story blew their cover
• examples: The double agent was blown by the other side
17. allow to regain its breath
• examples: blow a horse
18. melt, break, or become otherwise unusable
• examples: The lightbulbs blew out
• examples: The fuse blew
19. burst suddenly
• examples: The tire blew
• examples: We blew a tire