1. Triestino: This is the most prominent local dialect, a mix of Italian with Venetian, Friulian, and even Slovene influences. It's spoken by many locals, although younger generations may be more fluent in standard Italian.
2. Venetian: Though not as widely spoken as Triestino, Venetian dialect has a presence in Trieste, particularly among older generations and in certain neighborhoods.
3. Friulian: This dialect is spoken primarily in the surrounding region of Friuli, but some speakers can be found in Trieste, especially in the city's northeastern areas.
4. Slovene: Trieste has a significant Slovene community, and Slovene is spoken by many residents, especially in the northern parts of the city.
5. Italian: Standard Italian is the official language and widely spoken in Trieste, particularly in formal settings and by younger generations.
Important Note: Trieste's linguistic landscape is complex. While Triestino is the dominant local dialect, there are many other languages and dialects spoken in the city.
If you're interested in learning more about the specific features of Triestino dialect, you can search for resources online or consult with local language experts.