Definitions:

1. A useful or valuable quality, skill, or person. NOUN
   • He'll be a great asset to the team.
   • Her knowledge of Spanish and French is a real asset in her work.
2. anything of material value or usefulness that is owned by a person or company noun
   • A company's assets can consist of cash, investments, or copyright material.
3. Someone who provides secret information to a government or intelligence organization about what another government or organization is doing. NOUN
   • He was a military officer who served as a CIA asset.

Synonyms:

• Advantage
• Belongings
• Benefit
• Holdings
• Possessions
• Resources
• Virtue