Artificial intelligent assistant

centre-boarder

ˈcentre-ˌboarder
  [f. centre-board.]
  A boat with a centre-board.

1886 Outing (U.S.) VIII. 58/1 The boats are necessarily of light draught and center-boarders. 1897 Ibid. XXX. 337/1 The slippery bilge of an eggshell centreboarder.

Oxford English Dictionary

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