Artificial intelligent assistant

under-bid

ˈunder-bid, n. Bridge.
  [f. the vb.]
  a. A bid of a number of tricks insufficient to surpass the previous bid. rare. b. A lower bid than is warranted by the strength of a hand or of a partnership's combined hands.

1923 Daily Mail 6 Oct. 6/4 The under-bid of 2 spades is automatically raised to 3 spades by the fact of one of the opponents calling attention to it. 1945 ‘S. J. Simon’ Why you lose at Bridge 96 Most of the time I make what seems to me the best bid in the circumstances, whether it is an overbid, an underbid, or even an anti-system bid. 1977 Times 10 Dec. 13/6 The response which is outstanding is a gross underbid of One No Trump.

Oxford English Dictionary

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