Learn Italian: Questi vestiti sono molto cari. - These clothes are very expensive.

In this sentence, molto means "very" and describes the adjective cari (expensive). When molto is used as an adverb like this, it never changes its ending. It only changes to match plural nouns when it means "many" or "a lot of" (for example, molti vestiti means "many clothes").

Wait, doesn't vestiti mean "dresses"?

It can mean both! While un vestito usually refers to a dress or a suit, the plural i vestiti is the most common way to say "clothes" or "clothing" in general.

Why do we use questi instead of queste for "these"?

Because vestiti is a masculine plural noun. Questi is the masculine plural form of "these". If you were talking about a feminine plural noun, like scarpe (shoes), you would use queste.

Does caro mean "expensive" or "dear"?

Both! You can use caro to mean "dear" when writing a letter or talking about a loved one, but when talking about shopping or prices, it means "expensive". Notice how it changes to cari here to match the plural masculine noun vestiti.