an area for balls or moving
- big space mainly used for moving
- a-room for balls or dance.
1736, from basketball (n.2) + space (n.). Ballroom dancing is attested by 1872.
(letter.) An area for balls or dance.
On entering the ballroom the regular hum of voices, footsteps, and greetings deafened Natasha, and the light and glitter dazzled her still more.