1. Without concealment or deception; honest
   "their business was open and aboveboard"
   - straightforward

1. In an honest manner
   "was known for dealing aboveboard in everything"
   - honestly

See also: square, straight

• Bombycilla
• Bombycilla cedrorun
• Bombycilla garrulus
• Bombycillidae
• Bombyliidae
• Bombyx
• Bombyx mori
• bommie
• bon appétit
• bon mot
• bon ton
• bon vivant
• bon voyage
• bona fide
• bona fides
• Bonaire
• bonanza
• Bonaparte
• Bonar Law
• Bonasa
• Bonasa umbellus
• bonavist
• bonbon
• bonce
• bond