extension
The word 'extension' in Italian is 'estensione'. It is used in a similar way to English, referring to an additional part added to something to make it larger or better. It can also refer to the action of extending or the result of extending something. For example, 'l'estensione del contratto' means 'the extension of the contract'.
The contract extension has been renewed.
This phrase is used when a contract's duration has been increased or extended past its original termination date.
The document's extension is .docx.
This phrase is used in a technical context, referring to the format or type of a computer file.
The total extension of the property is ten hectares.
The usage of the term 'estensione' here refers to the size, area or scope of a piece of land or property.