: a ticket given to people so that they can go to another event (such as a baseball game) if the one they were watching or planning to go to is canceled or stopped because of rain
: a promise to allow someone to buy or do something in the future because it is not possible to buy or do it now
Full Definition of RAIN CHECK
: a ticket stub good for a later performance when the scheduled one is rained out
: an assurance of a deferred extension of an offer; especially: a document assuring that a customer can take advantage of a sale later if the item or service offered is not available (as by being sold out)
See rain check defined for English-language learners
Examples of RAIN CHECK
The store offered rain checks when the sale items had all sold.