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on a dime

on a dime

10 6.8
To move very quickly and with exact control when changing direction or plans
  • idiom
  • Informal
translation icon : en un instante
  • Yet things have turned on a dime in the past and can do so again.
  • turn on a dime
  • stop on a dime
  • change on a dime

And a big ship doesn't turn on a dime, it turns in increments.

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Examples

  • It's a beautiful example of how you can turn your life around on a dime when you have the power to let go of anything in your life.

  • Life can change on a dime.

  • But the current system will not turn on a dime, and such a comprehensive strategy would not bear fruit for decades.

    Academic text (2008)
  • The market was roaring upwards, and then on a dime, everything crashed.

    Blog text (34)
  • Ted turns on a dime and runs smack into Sigfried, who's been taking in the whole conversation.

    Fiction book (1995)
  • The Bullitt may be 8 feet long, but it turns on a dime (assuming a competent rider).

    Blog text (7)
  • She can adapt her plans on a dime when new information arises.

  • The driver was skilled enough to turn the car on a dime to avoid the obstacle.

  • His attitude changed on a dime as soon as he heard the good news.

Synonyms

in the blink of an eye
vson a dime
  • Informal
50 3.3

Very quickly, in almost no time

focuses on quick precise changes in direction or plans
in a flash
vson a dime
  • Informal
35 2.5

Very quickly in a single moment

emphasizes swift precise shifts in position or intent
on the fly
vson a dime
  • Informal
14 5.3

Quickly while you do something, without planning

focuses more on fast precise turns or deliberate quick adjustments
in the wink of an eye
vson a dime
  • Informal
1 3.5

Very quickly, in an instant

implies the same instant action but with precise directional change
quick as a flash
vson a dime
  • Informal
1 2.0

Happen very fast

adds the idea of exact, controlled change rather than just speed
in the snap of someone's fingers
vson a dime
  • Informal
5.0

Happens very quickly

highlights quickness combined with careful, precise adjustment
with a quickness
vson a dime
  • Informal
7.2

In a very short time

adds a sense of exact control when changing direction or plans

Antonyms

1.0

At a low speed without hurrying

How Quickly

on a dime
  • Informal
10 6.8
instantly
330 1.0
in a flash
  • Informal
35 2.5
quickly
1.0
fast
1.0

Surface Forms

on a dime positive

Morphology

on + a + dime

The phrase relies on a metaphorical image: turning 'on a dime' evokes doing something within the very small space of a dime (a tiny US coin), so the sense of a very quick or precise action is partially derivable from the constituents. However, the mapping is culturally specific (requires knowing what a dime is and the image of a tiny turning radius) and the idiomatic use is not fully predictable for a B1 learner, so it is only partially transparent.

Etymology

On a dime may come from old drivers who said a car could turn in the space of a small coin, the dime. So when something happens on a dime, imagine a quick, exact turn in a very small space, and it means 'very quickly' or 'very precisely'.