1

blow

verb \ ˈblō \

Definition of blow

blew play \ˈblü\; blown play \ˈblōn\; blowing
intransitive verb
1 a of air
(1) :to be in motion
  • A breeze blew gently.
(2) :to move with speed or force
  • The wind was blowing.
b :to move or run quickly
  • The linebacker blew past the tackle.
2 :to send forth a current of air or other gas
  • Don't blow on your soup.
3 a :to make a sound by or as if by blowing
  • hear the train blow
b of a wind instrument :sound
  • a horn blowing
  • waiting for the whistle to blow
4 a :boast
  • blowing about his accomplishments
b :to talk windily
5 a :pant, gasp
  • The horse blew heavily.
b of a cetacean :to eject moisture-laden air from the lungs through the blowhole
  • heard a whale blow nearby
6 :to move or be carried by or as if by wind
  • just blew into town for the weekend
7 a :erupt, explode
  • The bridge was about to blow.
  • The windows blew out in the explosion.
b :to become damaged or destroyed as a result of an electrical overload
  • The fuse blew.
  • A Western Massachusetts Electric Company power substation blew yesterday afternoon, cutting power for 90 minutes to more than 9,100 customers …
  • —Patrick Johnson
c of a tire :to release the contained air through a spontaneous rupture usually used with out
  • blew out a tire
transitive verb
1 a :to set (gas or vapor) in motion
  • The fan blew hot air on us.
b :to act on with a current of gas or vapor
  • The breeze blew my hair dry.
2 a :to play or sound on (a wind instrument)
  • blow their horns
b :to play (something) on a wind instrument
  • blow a tune
3 a :to spread by report
  • … through the court his courtesy was blown
  • —John Dryden
b past participle blowed play \ˈblōd\ :damn
  • blow the expense
4 a :to drive with a current of gas or vapor
  • The storm blew the boat off course.
b :to clear of contents by forcible passage of a current of air
  • blow your nose
c :to project (a gesture or sound made with the mouth) by blowing
  • blew him a kiss
5 a :to distend with or as if with gas
  • blow a balloon
b :to produce or shape by the action of blown or injected air
  • blowing bubbles
6 of insects :to deposit eggs or larvae on or in
  • wounds blown by flies
7 :to shatter, burst, or destroy by explosion
  • blow the safe open
8 a :to put out of breath with exertion
  • Take care not to blow the horses.
b :to let (an animal, such as a horse) pause to catch the breath
  • paused to blow the horses
9 a :to expend (something, such as money) extravagantly
  • blew her allowance on a pair of jeans
b :to treat with unusual expenditure
  • I'll blow you to a steak.
10 :to cause (a fuse) to blow
  • blew a fuse
11 :to rupture by too much pressure
  • blow a seal
12 a :botch 1
  • actors blowing their lines
b :to fail to keep or hold
  • They blew a big lead.
13 :to leave hurriedly
  • blew town
14 :to propel with great force or speed
  • blew a fastball by the batter
blow a gasket
:to become enraged
blow hot and cold
:to be favorable at one moment and adverse the next
blow off steam
:to release pent-up emotions
blow one's cool
:to lose one's composure
blow one's cover
:to reveal one's real identity
blow one's mind
:to overwhelm one with wonder or bafflement
  • an idea that's sure to blow your mind
blow one's top or blow one's stack
1 :to become violently angry
2 :to go crazy
blow smoke
:to speak idly, misleadingly, or boastfully
blow the whistle
:to call public or official attention to something (such as a wrongdoing) kept secret usually used with on
  • blew the whistle on the firm's unethical practices

Origin and Etymology of blow

Middle English, from Old English blāwan; akin to Old High German blāen to blow, Latin flare, Greek phallos penis


2

blow

noun

Definition of blow

1 :an instance of air moving with speed or force :a blowing of wind especially when strong or violent
3 :an act or instance of blowing (see 1blow)
  • gave his nose a good blow
  • a blow of the horn
4 metallurgy
a :the time during which air is forced through molten metal to refine it
b :the quantity of metal refined during that time
5 slang :cocaine

Origin and Etymology of blow

see 1blow


3

blow

verb

Definition of blow

blew play \ˈblü\; blown play \ˈblōn\; blowing
intransitive verb
:flower, bloom
  • I know a bank where the wild thyme blows
  • —Shakespeare

Origin and Etymology of blow

Middle English, from Old English blōwan; akin to Old High German bluoen to bloom, Latin florēre to bloom, flor-, flos flower


4

blow

noun

Definition of blow

2 :2bloom 1b
  • lilacs in full blow

Origin and Etymology of blow

see 3blow


5

blow

noun

Definition of blow

1 :a forcible stroke delivered with a part of the body (such as the fist) or with an instrument
  • a mighty blow with his club
  • boxers exchanging blows
2 :a hostile act or state :combat
  • nations coming to blows
3 :a forcible or sudden act or effort :assault
  • … such a language … would solve many of his … difficulties at a single blow.
  • —Edward Sapir
4 :an unfortunate or calamitous happening
  • failure to land the job came as a blow

Origin and Etymology of blow

Middle English (northern dialect) blaw; probably akin to Old High German bliuwan to beat


BLOW Defined for Kids

1

blow

verb \ ˈblō \

Definition of blow for Students

blew \ˈblü\; blown \ˈblōn\; blowing
1 :to move or be moved usually with speed and force
  • Wind is blowing from the north.
  • The door blew shut.
2 :to move in or with the wind
  • Dust blew through the cracks.
3 :to send forth a strong stream of air from the mouth or from a bellows
  • If you are cold, blow on your hands.
4 :to make a sound or cause to sound by blowing
  • The whistle blows loudly.
  • Blow your horn.
5 :to clear by forcing air through
  • Blow your nose.
6 :to shape by forcing air into
  • The workers showed how they blow glass.
7 :to enter or leave very quickly
  • She blew into the room.
8 :to fail in performing or keeping
  • The actor blew his lines.
  • The team blew a big lead.

blower

\ˈblō-ər\ noun
blow over
:to pass without effect
  • His anger will blow over.
blow up
1 :explode 1
2 :to fill with a gas
  • blow up a balloon

2

blow

noun

Definition of blow for Students

:a blowing of wind :gale

3

blow

noun

Definition of blow for Students

1 :a hard hit with a part of the body or an object
  • a hammer's blow
  • a blow to the head
2 :a sudden happening that causes suffering or loss
  • The dog's death was a severe blow.

Medical Dictionary

1

blow

transitive verb \ ˈblō \

medical Definition of blow

blew play \ˈblü\; blown play \ˈblōn\; blowing
1 :to free (the nose) of mucus and debris by forcible exhalation
2 of blowflies and flesh flies :to deposit eggs or larvae on or in

2

blow

noun

medical Definition of blow

1 :the act of some insects of depositing eggs or larvae; also :a larva so deposited (as in a wound) used chiefly of blowflies and flesh flies
2 :forcible ejection of air from the body (as in freeing the nose of mucus and debris)
3 slang :cocaine


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