plural of big day

The day of one's wedding. / Any day on which something significant or momentous happens.

(sports) The final that determines the winner of a competition, where the event also has a small final (consolation final).

(skiing, snowboarding) A discipline in freestyle skiing and snowboarding, involving sliding down a large launch ramp and then launching off a big kicker, to obtain height and time in the air to perform acrobatic maneuvers, and land on a landing slope.

(Internet slang, informal) An intense or relatable feeling, experience, or thing.

(Internet slang, informal) Used to express that the speaker finds something very relatable.

Alternative form of Big Science

Scientific research that is high-profile, large in scope, and so expensive that it requires government funding.

(music) Short for big room house.

present participle of big-note