| adjacency | Diplomacy.Province |
| adjacent | Diplomacy.Province |
| Adjust | Diplomacy.Phase |
| AdjustGame | Diplomacy.Game |
| adjustResolution | Diplomacy.OrderResolution |
| AdjustRound | |
| 1 (Type/Class) | Diplomacy.Game |
| 2 (Data Constructor) | Diplomacy.Game |
| AdjustSetValidityCriterion | Diplomacy.OrderValidation |
| AdjustSetValidityTag | Diplomacy.OrderValidation |
| AdjustSubjects | |
| 1 (Type/Class) | Diplomacy.OrderValidation |
| 2 (Data Constructor) | Diplomacy.OrderValidation |
| adjustSubjectsVOC | Diplomacy.OrderValidation |
| AdmissibleNumberOfBuilds | Diplomacy.OrderValidation |
| AdriaticSea | Diplomacy.Province |
| AegeanSea | Diplomacy.Province |
| Albania | Diplomacy.Province |
| ALCons | Diplomacy.OrderValidation |
| align | Diplomacy.Aligned |
| Aligned | Diplomacy.Aligned |
| alignedGreatPower | Diplomacy.Aligned |
| alignedThing | Diplomacy.Aligned |
| allSubjects | Diplomacy.Occupation |
| ALNil | Diplomacy.OrderValidation |
| analyze | Diplomacy.OrderValidation |
| Ankara | Diplomacy.Province |
| appendList | Data.AtLeast |
| Apulia | Diplomacy.Province |
| ArgumentList | Diplomacy.OrderValidation |
| Armenia | Diplomacy.Province |
| Army | Diplomacy.Unit |
| AtLeast | |
| 1 (Type/Class) | Data.AtLeast |
| 2 (Data Constructor) | Data.AtLeast |
| Austria | Diplomacy.GreatPower |