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backfire

backfire

2 5.0
A loud explosive noise from a gun or engine when fuel catches fire suddenly
  • noun
  • /ˈbækˌfaɪər/
translation icon : estallido
  • The popping sounded like a backfire on the road, or like gunshots, and hunting season hadn't even started.
  • backfire from a car
  • hear a backfire
  • sound like a backfire

I hear PPP and if you've heard gunshots, you know the difference between a gunshot and a car backfire.

Examples

  • As the motorcycle roared past, I heard a loud backfire that echoed through the street.

  • Carlos had no sooner finished his speech than there was a rumble, a backfire that made us jump, and Mr. Ince pulled up in his black Hupmobile convertible (the one they used in the Mack Sennett movies).

    Fiction book (1996)
  • Then, to my right, I heard a backfire.

    Fiction book (1995)
  • I thought it was a motorcycle backfire, and I looked over to my left and a second shot hit him in the face.

  • It couldn't have been a backfire; there was no vehicle in sight.

    Fiction book (1992)
  • A backfire rings out.

    Fiction book (1991)
  • The old car made a sudden backfire, startling everyone in the quiet parking lot.

  • After tuning the engine, the mechanic noted that it let out a loud backfire when started.

Synonyms

explosion
vsbackfire
2.8

A sudden violent burst that makes a loud noise and causes damage

is a loud noise of this type but limited to accidental fuel or gas ignition
detonation
vsbackfire
  • Specialized
85 6.7

A sudden violent explosion from a chemical or nuclear reaction

is a loud ignition noise that does not require a chemical or nuclear blast
report
vsbackfire
78 5.8

A sudden loud noise like the bang of a gun

is the same noise but caused by unexpected fuel or gases igniting
blast
vsbackfire
27 2.7

A sudden very loud noise that hurts your ears

is a similar loud noise specifically from unexpected fuel or gas ignition
pow
vsbackfire
  • Informal
19 7.3

A sudden loud sound from a hit, explosion, or when something bursts

is similar but points to unexpected ignition of fuel or gases
kaboom
vsbackfire
  • Informal
14 7.5

A loud bang from an explosion or a heavy hit

is the same kind of sound but caused by unexpected engine or gun ignition
a loud bang
vsbackfire
10 1.2

A sudden very loud noise often from an explosion or crash

is this loud noise specifically produced by unexpected fuel or gas ignition
boom-boom
vsbackfire
  • Informal
7 7.6

A loud, deep sound like an explosion or fireworks

is the same explosive noise caused by accidental fuel or gas ignition
blam
vsbackfire
  • Informal
2 8.9

A sudden loud noise like a gunshot or explosion

is that noise when it comes from unexpected fuel or gas ignition
eruption
vsbackfire
1 4.1

A sudden loud burst of noise such as applause

is that outburst when it comes from unexpected fuel or gas ignition
bangs
vsbackfire
1 1.3

Sudden loud noises like small explosions

is a single loud ignition noise caused by fuel or gases unexpectedly igniting
fulminous explosion
vsbackfire
9.0

A very sudden powerful blast that breaks things and makes loud noise

is a loud ignition sound rather than a massively destructive explosive event

Antonyms

660 2.0

A period with no sound or speech

45 1.0

A calm time with little or no sound

How Loud

explosion
2.8
bang
237 1.3
backfire
2 5.0
pop
3.1
to snap
167 2.3

Surface Forms

backfire singular
backfires plural

Morphology

backfire = back + fire (transparent) = back + fire

The sense denotes an actual explosive ignition at the rear; the compound 'back' + 'fire' is directly interpretable.

Etymology

The word backfire comes from the parts back ('behind') and fire ('flame'). Imagine a flame or small explosion coming out of the back of a gun or engine and making a loud bang, so a backfire is a sudden loud explosive noise.