| Country | Term | Full Form | Definition | Meaning | Main Category // Subcategory | |
|---|---|---|---|---|
| Worldwide | O | Pyrrolysine | Medical // Biochemistry | |
| Worldwide | O | Oxygen | Academic & Science // Chemistry | |
| Worldwide | O | Oh | Academic & Science // Language & Linguistics | |
| Worldwide | o | octet | Academic & Science // Units | |
| Worldwide | O | Oxygen | Academic & Science // Chemistry | |
| Germany | O | Oberst | Governmental // Military | |
The full form of O is Pyrrolysine in Medical (Worldwide).
The full form of O is Oxygen in Academic & Science (Worldwide).
The full form of O is Oh in Academic & Science (Worldwide).
The full form of o is octet in Academic & Science (Worldwide).