Blow, v. t.
 1. To force a current of air upon with the mouth, or by other means; as, to blow the fire.
 2. To drive by a current air; to impel; as, the tempest blew the ship ashore.
 Off at sea northeast winds blow
 Sabean odors from the spicy shore.   --Milton.
 3. To cause air to pass through by the action of the mouth, or otherwise; to cause to sound, as a wind instrument; as, to blow a trumpet; to blow an organ; to blow a horn.
 Hath she no husband
 That will take pains to blow a horn before her?   --Shak.
 Boy, blow the pipe until the bubble rise,
 Then cast it off to float upon the skies.   --Parnell.
 4. To clear of contents by forcing air through; as, to blow an egg; to blow one's nose.
 5. To burst, shatter, or destroy by an explosion; -- usually with up, down, open, or similar adverb; as, to blow up a building.
 6. To spread by report; to publish; to disclose; to reveal, intentionally or inadvertently; as, to blow an agent's cover.
    Through the court his courtesy was blown.   --Dryden.
    His language does his knowledge blow.   --Whiting.
 7. To form by inflation; to swell by injecting air; as, to blow bubbles; to blow glass.
 8. To inflate, as with pride; to puff up.
    Look how imagination blows him.   --Shak.
 9. To put out of breath; to cause to blow from fatigue; as, to blow a horse.
 10. To deposit eggs or larvæ upon, or in (meat, etc.).
 To suffer
 The flesh fly blow my mouth.   --Shak.
 To blow great guns, to blow furiously and with roaring blasts; -- said of the wind at sea or along the coast.
 To blow off, to empty (a boiler) of water through the blow-off pipe, while under steam pressure; also, to eject (steam, water, sediment, etc.) from a boiler.
 To blow one's own trumpet, to vaunt one's own exploits, or sound one's own praises.
 To blow out, to extinguish by a current of air, as a candle.
 To blow up. (a) To fill with air; to swell; as, to blow up a bladder or bubble. (b) To inflate, as with pride, self-conceit, etc.; to puff up; as, to blow one up with flattery. “Blown up with high conceits engendering pride.” --Milton. (c) To excite; as, to blow up a contention. (d) To burst, to raise into the air, or to scatter, by an explosion; as, to blow up a fort. (e) To scold violently; as, to blow up a person for some offense. [Colloq.]
    I have blown him up well -- nobody can say I wink at what he does.   --G. Eliot.
 -- To blow upon. (a) To blast; to taint; to bring into discredit; to render stale, unsavory, or worthless. (b) To inform against. [Colloq.]
    How far the very custom of hearing anything spouted withers and blows upon a fine passage, may be seen in those speeches from [Shakespeare's] Henry V. which are current in the mouths of schoolboys.   --C. Lamb.
    A lady's maid whose character had been blown upon.   --Macaulay.