Definition of rainy adjective from the Oxford Advanced American Dictionary

 

rainy

 adjective
adjective
NAmE//ˈreɪni//
 
(rainier, rainiest)
 
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  • having or bringing a lot of rain a rainy day the rainy season the rainiest place in the continental U.S.
  • Idioms
    save, keep, etc. something for a rainy day
     
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    to save something, especially money, for a time when you will really need it
    See the Oxford Advanced Learner's Dictionary entry: rainy