noun Also nose dive.

a plunge of an aircraft with the forward part pointing downward.
a sudden sharp drop or rapid decline: a time when market values were in a nosedive.

verb (used without object), nose·dived or nose·dove, nose·dived, nose·div·ing. Also nose-dive.

to go into a nosedive: a warning that prices might nosedive.

Origin of nosedive

First recorded in 1910–15; nose + dive Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for nose-dive

Historical Examples of nose-dive

  • The effect will then be to keep the nose up and prevent a nose-dive.

  • A nose-dive seemed inevitable, but once more she came to position.

  • As it was, it was really almost a nose-dive, and I did the first half of it with the throttle wide open.

    Many Fronts

    Lewis R. Freeman

  • Well, Bridgeman isn't back and Tam said he saw him nose-dive behind the German trenches.

    Tam O' The Scoots

    Edgar Wallace

  • She was then "on an even keel," but about to nose-dive towards the surface of the sea, barely a couple of hundred feet below.

    Billy Barcroft, R.N.A.S.

    Percy F. Westerman

Word Origin and History for nose-dive

"sudden large decrease," 1920, from airplane sense, first attested 1912, from nose (n.) + dive (n.). As a verb from 1915.

Online Etymology Dictionary, © 2010 Douglas Harper