| Term | Definition |
| President (Exexcutive) | Proposes laws, Enforces laws passed by Congress, Appoints ambassadors, cabinet members, and federal judges, Negotiates treaties, Conducts foreign policy, Commands armed forces |
| Congress (Legislative) | Writes and passes laws, proposes and approves amendments to the Constitution, Regulates commerce, Collects taxes, Controls federal taxes and spending, Funds the military, Borrows and coins money, Declares war |
| Supreme Court (Judicial) | Interprets laws and executive branch actions (decides whether laws are unconstitutional), Reviews lower court decisions |
| House of Reps | Initiates tax bills, Brings impeachment charges against President |
| Senate | *Ratifies treaties and approves presidential appointments (2/3 vote), Serves as jury in impeachment cases |