In English, we emphasize ownership with the word "own" (like "my own space"). In Italian, we use the possessive adjective proprio.
Like other adjectives, proprio agrees in gender and number with the noun it describes, and it takes a definite article (il proprio, la propria, i propri, le proprie).
Impersonal Subjects
When a sentence has an impersonal subject (like bisogna - "one must") or an indefinite subject (like ognuno - "everyone"), you must use proprio instead of suo or loro.
| One must protect one's own intimate sphere. | Bisogna tutelare la propria sfera intima. |
| Given that autonomy is important, everyone has their own rules. | Dato che l'autonomia è importante, ognuno ha le proprie regole. |
Third-Person Subjects
For third-person subjects (he, she, they, or a specific name), you can use proprio instead of suo/sua/loro if the subject of the sentence is also the owner. This helps avoid confusion by clarifying that the person is talking about their own things, not someone else's.
| The teenager protects his own personal space. | L'adolescente protegge il proprio spazio personale. |
| The doctor defends his own free time, seeing that it is sacred. | Il medico difende il proprio tempo libero, visto che è sacro. |
This rule also applies in dependent clauses. Proprio refers to the subject of that specific clause:
| Marco wants Anna to protect her own autonomy. | Marco vuole che Anna tuteli la propria autonomia. |
Privacy and Boundaries
Proprio is perfect for emphasizing personal space and individual boundaries.
| Everyone protects their own privacy and their own private life. | Ognuno protegge la propria riservatezza e la propria vita privata. |
