Definitions:

1. in an honest manner adverb
   • When we went into the business deal, we wanted to make sure everything was aboveboard, John said.
2. in an honest manner adverb
   • When we went into the business deal, we wanted to make sure everything was aboveboard, John said.
3. in an honest manner adverb
   • When we went into the business deal, we wanted to make sure everything was aboveboard, John said.
4. without concealment or deception adjective
   • When we went into the business deal, we wanted to make sure everything was aboveboard, John said.
5. without concealment or deception adjective
   • aboveboard (adjective) means done or conducted in an honest and open way.
6. without concealment or deception adjective
   • Some synonyms are: honest, legitimate, lawful, legal.

Synonyms:

• honestly
• straightforward