| Part of speech | common noun |
|---|---|
| Hyphenation | o·pi·o·id·o |
| Singular | Plural | |
|---|---|---|
| Nominative | opioido | opioidoj |
| Accusative | opioidon | opioidojn |
| Afrikaans | opioïed |
|---|---|
| Danish | opioid |
| Dutch | opioïde |
| English | opioid |
| French | opioide |
| German | Opioid |
| Italian | oppioide |
| Norwegian | opioid |
| Portuguese | opioide |
| Swedish | opioid |
| Thai | โอปิออยด์ |