A
- Abandoned subdivision or condominium
- Abandonment
- Abatement
- Abduction of children
- Abuse of dominant position
- Academic franchising
- Academic program
- Acceleration clause
- Access device
- Accident
- Accreditation
- Acquired Immune Deficiency Syndrome (AIDS)
- Acquirer
- Acquisition
- Action
- Acts of gender-based violence
- Actual or outright exportation
- Addiction
- Administrative order
- Admission
- Adult vaccines
- Adulterated pharmaceutical products
- Agreement
- Agricultural and bio-information system
- Agricultural and bio-processing
- Agricultural and biological waste utilization and management
- Agricultural and biosystems automation and instrumentation
- Agricultural and biosystems buildings and structures
- Agricultural and biosystems engineer
- Agricultural and biosystems engineering
- Agricultural and biosystems power and machinery
- Agricultural and biosystems resource conservation and management
- Agricultural Free Patent Reform Act
- Agricultural product
- Airway bill (AWB)
- Allied health care professional
- Ambulance chaser
- Ambulance chasing
- Amenity
- Anti-Age Discrimination in Employment Act
- Anti-Agricultural Smuggling Act of 2016
- Anti-competitive agreements
- Anti-Mail Order Spouse Act
- Anti-retroviral therapy (ART)
- Appeal
- Application
- Aquaculture
- Aquatic resources
- Armed conflict
- Armed group
- Articulation
- ASEAN Mutual Recognition Arrangement (ASEAN MRA)
- ASEAN Qualifications Reference Framework (AQRF)
- Assessment
- Asset
- Asset distribution plan
- Athletes with disabilities
- Athletic association
- ATIGA rate
- Attacks on schools or hospitals etc.
- Authentication
- Authorization
- Authorized economic operator (AEO)
- Authorized government depository bank
- Auxiliary services
- Average daily salary credit
- Average monthly salary credit
- Awarding institution