Similar words: rainy, brain drain, mayday, by day, payday, heyday, everyday, every day. Meaning: n. a (future) time of financial need.
61. On a rainy day the soup is comfort food at its finest.
62. Besides, we need to increase our foreign exchange reserve for the rainy day.
63. You ought to have put aside some amount of money for a rainy day.
64. Commend me to a leaky house on a rainy day.