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WordReference Random House Learner's Dictionary of American English © 2024ˈroll•er ˌcoast•er, n. [countable]- Rail Transporta small railroad, esp. in an amusement park, with open cars that moves along high, sharply winding tracks.
- any activity, period, or experience in which there are violent or sudden ups and downs:a roller coaster of emotions.
WordReference Random House Unabridged Dictionary of American English © 2024roll′er coast′er, - Rail Transporta small gravity railroad, esp. in an amusement park, having a train with open cars that moves along a high, sharply winding trestle built with steep inclines that produce sudden, speedy plunges for thrill-seeking passengers.
- Rail Transporta car or train of cars for such a railroad.
- any phenomenon, period, or experience of persistent or violent ups and downs, as one fluctuating between prosperity and recession or elation and despair.
roll•er-coast•er (rō′lər kō′stər, rō′li-),USA pronunciation v.i. - to go up and down like a roller coaster;
rise and fall:a narrow road roller-coastering around the mountain; a light boat roller-coastering over the waves. - to experience a period of prosperity, happiness, security, or the like, followed by a contrasting period of economic depression, despair, or the like:The economy was roller-coastering throughout most of the decade.
adj. - of, pertaining to, or characteristic of a roller coaster.
- resembling the progress of a ride on a roller coaster in sudden extreme changeableness.
Collins Concise English Dictionary © HarperCollins Publishers:: roller coaster n - another term for big dipper
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