face
The Italian word 'faccia' translates to 'face' in English. It can be used in similar contexts as in English, such as referring to the front part of a person's head, or expressing different emotions. Similar to its usage in English, it can also be used figuratively in various expressions and idioms.
Ask a new question.
This sentence is in the command form, thus 'Faccia' here indicates a formal request to someone to ask a new question. In English this can be translated as 'Ask a new question'.
My face is red.
In this case, 'faccia' is used in its most common form to mean 'face'. The phrase 'La mia faccia è rossa' is translated as 'My face is red' in English. It is a simple declarative sentence.
Do not make noise.
Similar to the first example, 'Non faccia rumore' is a formal request or command to someone not to make noise. The usage of 'faccia' here is in its command form.