Dictionary definition · blow
noun
- a powerful stroke with the fist or a weapon"a blow on the head"
- an impact (as from a collision)"the bump threw him off the bicycle"
- an unfortunate happening that hinders or impedes; something that is thwarting or frustrating
- an unpleasant or disappointing surprise"it came as a shock to learn that he was injured"
- a strong current of air"the tree was bent almost double by the gust"
- street names for cocaine
verb
- exhale hard"blow on the soup to cool it down"
- be blowing or storming"The wind blew from the West"
- free of obstruction by blowing air through"blow one's nose"
- be in motion due to some air or water current"The leaves were blowing in the wind"
- make a sound as if blown"The whistle blew"
- shape by blowing"Blow a glass vase"
Source: Open English WordNet (CC BY 4.0).