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

• archer
• archerfish
• archery
• Arches National Park
• archespore
• archesporial
• archesporium
• archetypal
• archetype
• archetypical
• archiannelid
• Archiannelida
• Archibald MacLeish
• Archibald Percival Wavell
• archidiaconal
• archidiaconate
• Archidiskidon
• Archidiskidon imperator
• archiepiscopal
• archil
• Archilochus
• Archilochus colubris
• archimandrite
• Archimedean
• Archimedes