English Reference
Idiom idiom

dry run


A practice or rehearsal; especially, one that goes through all the motions of a physical process but without the raw material or workpiece present.

Meaning adapted from Wiktionary, available under CC BY-SA 4.0.


SIMPLE

We did a dry run before the big presentation.

CONTEXTUAL

The theater group did a dry run of the play without costumes or lights.

COMPLEX

Engineers conducted a final dry run of the launch sequence, checking every system without fuel in the tanks.


first recorded 20th c. disputed origin

From dry (“impotent; harmless”) + run. First attested in print in 1941, but apparently much older in spoken English.


Related idioms8entries
  1. 01

    break into a run

    To start running.

  2. 02

    common run

    Ordinary persons, things, or events.

  3. 03

    cut and dried

    Simple, straightforward, clear, or certain.

  4. 04

    dry behind the ears

    Seasoned or experienced; mature, especially with respect to judgment.

  5. 05

    dry eye

    An eye which is not crying, i.e. someone emotionally unmoved.

  6. 06

    Dry January

    A popular health challenge where a person abstains from alcohol for the entire month of January.

  7. 07

    dry one's eyes

    To cease crying.

  8. 08

    dry out

    To (cause to) sober up; to cease to be drunk; to quit using drugs or alcohol.

Last updated August 10, 2026