"Prego" is an Italian word that has multiple meanings and uses. Here are some of the most common ones:

• Youre welcome: This is the most common use of "prego" and is used as a response to "grazie" (thank you) .

• Please: "Prego" can also be used as a polite way of saying "please".

• After you: In some situations, "prego" can mean "after you" or "go ahead".

• Excuse me?: "Prego" can be used as a fixed expression to mean "I beg your pardon" or "Excuse me?".

• How can I help you?: "Prego" can also be used to ask how one can be of assistance.

• Come in: In some situations, "prego" can mean "come in".

• Polite invitation: "Prego" can be used as a polite invitation to do something.

• Attention, please: "Prego" can also be used to mean "Attention, please".

The word "prego" comes from the Italian verb "pregare," which means "to pray" or "to beg".