| acceleration | | |
| n. (attribute) | 1. acceleration | an increase in rate of change.; "modern science caused an acceleration of cultural change" |
| ~ getaway, pickup | the attribute of being capable of rapid acceleration.; "his car has a lot of pickup" |
| ~ precipitation | an unexpected acceleration or hastening.; "he is responsible for the precipitation of his own demise" |
| ~ alteration, change, modification | an event that occurs when something passes from one state or phase to another.; "the change was intended to increase sales"; "this storm is certainly a change for the worse"; "the neighborhood had undergone few modifications since his last visit years ago" |
| n. (act) | 2. acceleration, quickening, speedup | the act of accelerating; increasing the speed. |
| ~ hurrying, speeding, speed | changing location rapidly. |
| n. (time) | 3. acceleration | (physics) a rate of increase of velocity. |
| ~ natural philosophy, physics | the science of matter and energy and their interactions.; "his favorite subject was physics" |
| ~ angular acceleration | (physics) the rate of change of the angular velocity of a rotating body. |
| ~ centripetal acceleration | the acceleration toward the center that holds a satellite in elliptical orbit. |
| ~ rate | a magnitude or frequency relative to a time unit.; "they traveled at a rate of 55 miles per hour"; "the rate of change was faster than expected" |
| fleet | | |
| n. (group) | 1. fleet | group of aircraft operating together under the same ownership. |
| ~ aircraft | a vehicle that can fly. |
| ~ airline business, airline, airway | a commercial enterprise that provides scheduled flights for passengers. |
| ~ aggregation, collection, accumulation, assemblage | several things grouped together or considered as a whole. |
| n. (group) | 2. fleet | group of motor vehicles operating together under the same ownership. |
| ~ autobus, bus, charabanc, double-decker, jitney, motorbus, motorcoach, passenger vehicle, omnibus, coach | a vehicle carrying many passengers; used for public transport.; "he always rode the bus to work" |
| ~ bus line | an organization responsible for operating a bus transportation system. |
| ~ taxi, taxicab, cab, hack | a car driven by a person whose job is to take passengers where they want to go in exchange for money. |
| ~ aggregation, collection, accumulation, assemblage | several things grouped together or considered as a whole. |
| ~ motor pool | a fleet of military vehicles controlled by a single agency and available for use as needed. |
| n. (group) | 3. fleet | a group of steamships operating together under the same ownership. |
| ~ ship | a vessel that carries passengers or freight. |
| ~ steamship company, steamship line | a line responsible for the operation of a fleet of steamships. |
| ~ argosy | one or more large merchant ships. |
| n. (group) | 4. fleet | a group of warships organized as a tactical unit. |
| ~ flotilla | a fleet of small craft. |
| ~ flotilla | a United States Navy fleet consisting of two or more squadrons of small warships. |
| ~ guided missile frigate | a frigate that carries guided missiles. |
| ~ combat ship, war vessel, warship | a government ship that is available for waging war. |
| ~ aggregation, collection, accumulation, assemblage | several things grouped together or considered as a whole. |
| ~ naval forces, navy | an organization of military vessels belonging to a country and available for sea warfare. |
| ~ armada | a large fleet. |
| ~ battle fleet | a fleet of warships prepared for battle. |
| ~ wolf pack | a group of submarines operating together in attacking enemy convoys. |
| v. (motion) | 5. dart, fleet, flit, flutter | move along rapidly and lightly; skim or dart.; "The hummingbird flitted among the branches" |
| ~ butterfly | flutter like a butterfly. |
| ~ hurry, travel rapidly, zip, speed | move very fast.; "The runner zipped past us at breakneck speed" |
| v. (change) | 6. blow over, evanesce, fade, fleet, pass, pass off | disappear gradually.; "The pain eventually passed off" |
| ~ disappear, vanish, go away | get lost, as without warning or explanation.; "He disappeared without a trace" |
| adj. | 7. fleet, swift | moving very fast.; "fleet of foot"; "the fleet scurrying of squirrels"; "a swift current"; "swift flight of an arrow"; "a swift runner" |
| ~ fast | acting or moving or capable of acting or moving quickly.; "fast film"; "on the fast track in school"; "set a fast pace"; "a fast car" |
| quick | | |
| n. (body) | 1. quick | any area of the body that is highly sensitive to pain (as the flesh underneath the skin or a fingernail or toenail). |
| ~ region, area | a part of an animal that has a special function or is supplied by a given artery or nerve.; "in the abdominal region" |
| adj. | 2. quick, speedy | accomplished rapidly and without delay.; "was quick to make friends"; "his quick reaction prevented an accident"; "hoped for a speedy resolution of the problem"; "a speedy recovery"; "he has a right to a speedy trial" |
| ~ fast | acting or moving or capable of acting or moving quickly.; "fast film"; "on the fast track in school"; "set a fast pace"; "a fast car" |
| adj. | 3. fast, flying, quick | hurried and brief.; "paid a flying visit"; "took a flying glance at the book"; "a quick inspection"; "a fast visit" |
| ~ hurried | moving rapidly or performed quickly or in great haste.; "a hurried trip to the store"; "the hurried life of a city"; "a hurried job" |
| adj. | 4. agile, nimble, quick, spry | moving quickly and lightly.; "sleek and agile as a gymnast"; "as nimble as a deer"; "nimble fingers"; "quick of foot"; "the old dog was so spry it was halfway up the stairs before we could stop it" |
| ~ active | characterized by energetic activity.; "an active toddler"; "active as a gazelle"; "an active man is a man of action" |
| adj. | 5. quick, ready | apprehending and responding with speed and sensitivity.; "a quick mind"; "a ready wit" |
| ~ intelligent | having the capacity for thought and reason especially to a high degree.; "is there intelligent life in the universe?"; "an intelligent question" |
| adj. | 6. immediate, prompt, quick, straightaway | performed with little or no delay.; "an immediate reply to my letter"; "a prompt reply"; "was quick to respond"; "a straightaway denial" |
| ~ fast | acting or moving or capable of acting or moving quickly.; "fast film"; "on the fast track in school"; "set a fast pace"; "a fast car" |
| adj. | 7. quick, warm | easily aroused or excited.; "a quick temper"; "a warm temper" |
| ~ excitable | easily excited. |
| adv. | 8. promptly, quick, quickly | with little or no delay.; "the rescue squad arrived promptly"; "come here, quick!" |
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