drop off

Drop Off is a puzzle video game developed by G-Mode. The game was originally released in 1989 for the PC Engine under the title Drop Rock Hora Hora, and subsequently saw a stateside release in 1990 for the TurboGrafx-16 console. It has more recently been released on the Virtual Console in North America on July 30th, 2007. It was released on the Virtual Console in Europe on August 3rd, 2007.
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The following terminology is used in the general sport of cycling, as well as the more specific road bicycle racing and mountain bicycle racing.
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Verb
1. fall or diminish; "The number of students in this course dropped off after the first test"
(hypernym) decrease, diminish, lessen, fall
(derivation) decrease, lessening, drop-off
2. change from a waking to a sleeping state; "he always falls asleep during lectures"
(synonym) fall asleep, dope off, flake out, drift off, nod off, doze off, drowse off
(hyponym) zonk out
3. retreat
(synonym) fall back, lose, fall behind, recede
(hypernym) regress, retrograde, retrogress
4. get worse; "My grades are slipping"
(synonym) slip, drop away, fall away
(hypernym) worsen, decline
(hyponym) lapse, backslide
(derivation) slump, slack, drop-off, falloff, falling off

Noun
1. a noticeable deterioration in performance or quality; "the team went into a slump"; "a gradual slack in output"; "a drop-off in attendance"; "a falloff in quality"
(synonym) slump, slack, falloff, falling off
(hypernym) deterioration, decline in quality, declension, worsening
(derivation) slip, drop off, drop away, fall away
2. a steep high face of rock; "he stood on a high cliff overlooking the town"; "a steep drop"
(synonym) cliff, drop
(hypernym) geological formation, formation
(hyponym) crag
3. a change downward; "there was a decrease in his temperature as the fever subsided"; "there was a sharp drop-off in sales"
(synonym) decrease, lessening
(hypernym) change, alteration, modification
(hyponym) shrinking, shrinkage
(derivation) drop off

Recyclable materials collection method in which individuals bring them to a designated collection site.

go to sleep, doze, fall asleep I only dropped off for a second. I was awake for the news.

Synonyms and related words:
abate, ablate, bate, be eaten away, buy it, cascade, cash in, cataract, check in, check out, collapse, come down, consume, consume away, corrode, crash, croak, crumble, decline, decrease, deliquesce, descend, die away, diminish, dip down, dive, dope off, down, doze off, drop, drop asleep, drop down, drowse off, dwindle, ebb, erode, fall, fall asleep, fall away, fall down, fall off, go down, go downhill, go to sleep, go west, gravitate, have it, kick in, kick off, kick the bucket, knock off, languish, lessen, let up, lose altitude, melt away, nod off, parachute, pass out, peg out, pipe off, pitch, plummet, plunge, pop off, pounce, pour down, precipitate, rain, run low, sag, settle to sleep, shove off, shrink, sink, slide, slump, step off, stoop, subside, swoop, tail off, trend downward, wane, waste, waste away, wear, wear away,