English Reference
Idiom idiom

crash dive


An emergency maneuver by a submarine in which it suddenly descends, especially to considerable depth, usually in order to escape an attack or avoid a collision.

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


SIMPLE

The submarine must crash dive to avoid the enemy ship.

CONTEXTUAL

When the radar detected an incoming missile, the captain ordered the crew to crash dive immediately.

COMPLEX

Facing imminent detection by the patrol vessel, the commander initiated a desperate crash dive, plunging the vessel into the silent, crushing depths of the ocean.


Related idioms4entries
  1. 01

    crash course

    A quick, intense course of learning, especially one which is informal or hurried.

  2. 02

    deep dive

    An in-depth examination or analysis of a topic.

  3. 03

    dive in

    To start a new endeavor enthusiastically and wholeheartedly.

  4. 04

    take a dive

    To feign a knockout in order to lose intentionally.

Last updated August 10, 2026