O
Document Name 
 |
Type  |
||
 | Oath of Office | Glossary | |
| Oaths to Witnesses | Glossary | |
| Objection | Glossary | |
| Objectors | Glossary | |
| Obligated Balance | Glossary | |
| Obligation | Glossary | |
| Off-Budget Entities | Glossary | |
| Offer | Glossary | |
| Office of Management and Budget (OMB) | Glossary | |
| Officers of Congress | Glossary | |
| Official Conduct | Glossary | |
| Official Objectors | Glossary | |
| Official Title | Glossary | |
| Offsetting Receipts | Glossary | |
| Omnibus Bill | Glossary | |
| One-Day Rule | Glossary | |
| One-Hour Rule | Glossary | |
| One-Minute Speeches | Glossary | |
| One-Speech Rule | Glossary | |
| One-Year Appropriation | Glossary | |
| Open Hearing | Glossary | |
| Open Rule | Glossary | |
| Open to Amendment at Any Point | Glossary | |
| Order of Business (House) | Glossary | |
| Order of Business (Senate) | Glossary | |
| Order | Glossary | |
| Ordered Reported | Glossary | |
| Organization of Congress | Glossary | |
| Original Bill | Glossary | |
| Original Jurisdiction | Glossary | |
| Origination Clause | Glossary | |
| Other Body | Glossary | |
| Out of Order | Glossary | |
| Outlays | Glossary | |
| Outyears | Glossary | |
| Over Under the Rule | Glossary | |
| Overlapping Jurisdiction | Glossary | |
| Override a Veto | Glossary | |
| Overrule | Glossary | |
| Oversight | Glossary | |
| Oxford-Style Debate | Glossary |