Italian to English Dictionary (Dizionario Italiano-Inglese)

Square

A plane figure with four equal straight sides and four right angles.

That

Used to identify a specific person or thing observed or heard close at hand or being indicated.

These

Used to refer to specific items or people that are close in distance or time.

This

Used to identify a specific person or thing close at hand or being indicated or experienced.

When

At what time.

Which

Used to ask questions about one or more items from a defined set.