From Longman Dictionary of Contemporary Englishthe rushthe rushBUSY PLACEthe time in the day, month, year etc when a place or group of people is particularly busy → peak The café is quiet until the lunchtime rush begins. the Christmas rush → rush hour → rush
Examples from the Corpus
the rush• Buy your tickets early and avoid the rush.• We're building up our stocks of books and toys to get ready for the Christmas rush. 