the big day

: of great strength

: of great force

: large or great in dimensions, bulk, or extent

: in a loud or declamatory manner

: to a large amount or extent

: on a large scale

: an individual or organization of outstanding importance or power

: a big player : a center or forward whose large size and strength are used to control play near the basket

: the time of light between one night and the next

: daylight

: daytime