nosedive

English Thesaurus

1. a steep nose-down descent by an aircraft (noun.act)

hypernym	:	descent,
definition	:	the act of changing your location in a downward direction (noun.act)

hyponym	:	power dive,
definition	:	a dive of an airplane that is accelerated both by gravity and by the power of the engine (noun.act)

2. a sudden sharp drop or rapid decline (noun.process)

hypernym	:	decline, diminution,
definition	:	change toward something smaller or lower (noun.process)

3. plunge nose first; drop with the nose or front first, of aircraft (verb.motion)

hypernym	:	dive, plunge, plunk,
definition	:	drop steeply (verb.motion)

domain category	:	air, air travel, aviation,
definition	:	travel via aircraft (noun.act)