city
The term 'città' is used in Italian exactly how 'city' is used in English. It refers to a large or important town. To help remember it, notice that it's similar to the word 'city' in pronunciation and spelling.
I like your city.
This is a simple sentence expressing a positive feeling about someone else's city. In Italian, the possessive adjective (in this case, 'tua' for 'your') agrees in gender and number with the noun it modifies ('città').
I live in a small city.
This sentence uses the preposition 'in' to indicate location. Also, the Italian word order typically places adjectives (like 'piccola' for 'small') after the noun they modify ('città').
The city is very crowded today.
In this example, we see that the adjective ('affollata' for 'crowded') comes after the noun ('città'). The use of 'molto' before the adjective is to intensify its meaning, similar to the use of 'very' in English.