- (idiomatic) Openly, without deceit.
- 2001, Michael Inne, A Family Affair, page 82:
- ' […] And he explained this business of confidential commissions?' / 'Yes, he did. And it seemed to turn out quite respectable and above board.' Mrs Meatyard considered. 'Or almost above board.
- (idiomatic) Honestly, reputably.
- They conducted the negotiations completely above board.