dirty
The word 'sporco' in Italian is used to describe something that is dirty or unclean. It can be used to describe objects, places, or people. For example, 'la casa è sporca' means 'the house is dirty'. It can also be used as an adjective, such as 'un bambino sporco' which means 'a dirty child'. In a more figurative sense, 'sporco' can also mean 'dirty' in the sense of being morally corrupt or dishonest.
Your coat is dirty.
In this sentence, 'sporco' is used to describe the state of an object - the coat. It is directly translated to 'dirty'. This form (è sporco) is used for masculine singular nouns.
Don't touch that dirty table.
In this example, 'sporco' is acting as an adjective to describe the noun (tavolo). When using 'sporco' before the noun, it gives the sentence a more distinctive tone. But be careful with the word order because in general, adjectives in Italian go after the noun they modify.
The restaurant was so dirty that we left.
Here, 'sporco' is used to express a quality of the restaurant that prompted an action (leaving the restaurant). The word 'così' intensifies the adjective 'sporco', stressing on how dirty the restaurant was.