machine; mechanism; instrument; appliance; apparatus
to fall to one's knees; to go down on one's knees (e.g. to express respect)
from the beginning; without hesitation; entirely; completely; head-on; head-first
to dash (water, etc.; on someone or something); to throw (on); to pour (over)
to be lucky; to be in luck; to be attached; to have; to be included
thirst for blood; bloodlust; determination to kill
to be at a complete loss; to be without recourse; to be completely stymied; to have absolutely no idea what to do
plan to overcome an obstacle or break out of a deadlock; breakthrough solution
waterfall; cataract; cascade
(swimming) pool; pool (cue sport); pooling (money, resources, etc.); pool (price ring)
to turn over; to turn upside down; to knock over; to tip over; to overturn (e.g. a decision); to upset
whole area; surrounding area; all around; everywhere; all over the place
to mow down; to cut down; to knock down; to defeat; to beat
to struggle in the water; to be drowning; to sink below the surface and become unable to breathe; to indulge in; to lose one's head over something; to be addicted
breathing; respiration; knack; trick; harmony; balance
capture (of enemy territory); taking (by storm); defeating (an opponent); attacking (a problem) strategically; strategy; tactics
combined use; using together (with); using jointly; using at the same time
quick-witted and agile; keen and nimble
tailspin; spin; drilling; boring
to satisfy (conditions, one's appetite, etc.); to meet (e.g. demands); to fulfill; to fill (e.g. a cup); to pack; to supply
creation; generation; formation; derivation
useless; no future in it; doesn't make sense; having no point
cheap lodging (especially in a skid row area or slum); flophouse
mischief; prank; mischievous; naughty; pastime; hobby
deep sea; depths of the sea; ocean depths
chillingly; shiveringly; with goosebumps; uncomfortably; restlessly
the vertical; height; front-to-back; length; north-to-south; vertical (relationship)
through (e.g. an intermediary, a medium); via; over (e.g. a network); across; by way of; by means of
unit (e.g. meters, grams, etc.); denomination; unit (i.e. one comprised of many); group; credit (in school, university, etc.); point
original; unique (e.g. product); signature; exclusive
Mariana Trench (deepest part of the ocean, near the Mariana Islands)
900; nine hundred; (arch.) fool; (arch.) idiot
the sciences; STEM (science, technology, engineering and mathematics)
calculation; computation; reckoning; consideration; calculation; estimation
five; five years of age; eight o'clock (old time system)
to spring; to bound; to be stimulated; to be encouraged; to pay handsomely; to splurge
still; much more; (not) yet; still a long way to go; still a long way off; not there yet
to (finally) arrive at; to reach (at last); to (manage to) get to; to find one's way to
naturally; of course; understandably
(powers of) concentration; ability to concentrate
staying up all night three nights in a row; triple all-nighter
difference in elevation (between two points in a body of water); head; drop (e.g. of a waterfall); difference; gap