Artificial intelligent assistant

ball-room

ball-room
  (ˈbɔːlruːm)
  [ball n.2 4.]
  A room designed or suitable for dancing. Also attrib., esp. in ball-room dancing, social dancing in a ball-room as a recreation.

1736 Fog Jrnl. 30 Nov. in London Mag. (1737) Apr. 190/2 The Conspirators..were first to blow up the Ball-Room. 1752 Johnson Rambl. 201 ¶8 The play-house, the ball-room, or the card-table. 1875 Helen Mathers Comin' thro' Rye ii. ix, Ball-room conversation is never expected to be very wise, is it? 1894 E. Scott Dancing iv. 24 Not..half the people who professed to teach ball-room dancing really knew the difference. 1911 Kipling Big Steamers in Fletcher & Kipling Hist. England xii. 236 Oh, the Channel's as bright as a ball-room already. 1923 Wodehouse Adv. Sally ii. 54 The only thing I could do..was ball-room dancing, so I ball-room danced. 1929 Melody Maker Jan. 10/1, I was given the opportunity of seeing the New Playhouse ballroom opened by the Green Brothers. Ibid. 10/3 Ballroom dancing has been slumping steadily.

Oxford English Dictionary

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