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crash dive

1. noun A sudden descent, typically in an emergency situation. The phrase is usually applied to submarines and airplanes. Engine two is out, prepare for a crash dive!
2. verb To make such a descent. My brain could barely comprehend that the our lives were in danger before the plane started to crash dive.
See also: crash, dive

deep dive

A thorough analysis, perhaps one that seems excessive or unwarranted for a particular topic. When you get a chance, check out the magazine's deep dive on the upcoming vote. It covers every angle. Wow, they really did a deep dive on eye shadow in that article. It was 20 pages long!
See also: deep, dive

dive in with both feet

To begin or undertake something quickly, enthusiastically, and without trepidation. I know you're nervous about starting school, but you just need to dive in with both feet and do your best!
See also: both, dive, feet

dive into (something)

1. Literally, to jump or leap into something, often a pool. I was so hot after my run that I dove into the pool as soon as I got home.
2. To start a task enthusiastically, perhaps without much forethought. Because we just dove into fixing up our house, every room is under construction at the same time.
3. To begin eating something enthusiastically. Each kid dove into his slice of cake as soon as it was set before him.
See also: dive

dive off

Literally, to jump or leap into something, often headfirst. After debating it for several summers, Anna finally dove off the high dive at the community pool today.
See also: dive, off

dive in with both feet

 and jump in with both feet
Fig. to become completely involved with something quickly, especially something new. I had never done anything like this before, but I just jumped in with both feet and learned it in no time.
See also: both, dive, feet

dive off

((of) something ) to jump off something headfirst. (Of is usually retained before pronouns.) Rachel dived off of the rock into the river. She dived off the high diving board.
See also: dive, off
References in classic literature ?
Some white man must have taught him, for he made the proper swan dive and did it as beautifully as I have ever seen it.
She beckoned the boy of the swan dive nearer to her, and signed to him to dive over again.
She took no notice, but held up the gold coin before the eyes of the boy of the swan dive.
The two fugitives were just about to dive into the sea when the Shark sneezed very suddenly and, as he sneezed, he gave Pinocchio and Geppetto such a jolt that they found themselves thrown on their backs and dashed once more and very unceremoniously into the stomach of the monster.
Divers can also sign up for the SeaOman Dive Club Membership which offers two free dives for PADI-certified divers, with equipment hire included, an extra ten per cent discount on dives (two tanks).
Coral Sea Safari, Great Barrier Reef Spend seven days on a custom designed boat and enjoy a total of 27 dives exploring the famous Great Barrier Reef in Australia.
Guests will also get the unique opportunity to learn how to dive in one of the resort's private and pristine salt water pools, allowing them to become accustomed to the sensation of diving prior to doing open water dives in the sea.
15am and includes two ocean dives at fifteen different dive sites within range of The Atlantis Dive Centre including man-made reefs and shipwrecks off the coast of Dubai and the magnificent Musandam.
So far in his short life, Chris has spent over 18 hours under water and has logged 22 dives which is more than I have
They supplied data on illnesses they'd had in the past year, how many dives they'd made in various aquatic environments, and what volume of water they'd swallowed on a typical dive.
Sawyer, who will compete next year at Nevada-Reno, averaged better than 40 points on her final three dives to hold off Flynn, who took runner-up honors for the second year in a row.
The researchers used detailed questionnaires to ask occupational and sport divers about the number and duration of dives they made in ocean, coastal, and freshwater areas; whether a known pollution source was nearby; the type of diving mask worn (which affects the amount of water swallowed); and the amount of water typically swallowed per dive.
The divers were using computers to track their dives, but it is unclear if the mishap victim knew how to use hers because she later would report she was unsure about her decompression stops during her ascent to the surface.
She has since become a certified advanced open water diver and has logged 144 dives, achieving her deepest dive at 105 feet.