Definition of rain date
: an alternative date set aside for use if a scheduled event must be postponed due to rain
Examples of rain date in a sentence
The bike trip is scheduled for May 18th, with a rain date of May 25th.
First Known Use of rain date
RAIN DATE Defined for English Language Learners
Definition of rain date for English Language Learners
: a date for something to happen if it cannot happen on its original date because of rain
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