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Meaning of word roller coaster from English dictionary with examples, synonyms and antonyms.

roller coaster   noun

Meaning : Anything characterized by abrupt and extreme changes (especially up and down).

Example : The economy has been on a roller coaster all year.

Meaning : Elevated railway in an amusement park (usually with sharp curves and steep inclines).

Synonyms : big dipper, chute-the-chute

Roller coaster meaning in Bengali (Bangla).