How to Say "Rectangle" in Italian

rettangolo

/retˈtan.ɡo.lo/masculine

The Italian word for rectangle is rettangolo.

rettangolo is a masculine noun used to refer to a quadrilateral.

Meaning: quadrilateral (noun)

How does it change in a sentence?

The plural form of rettangolo is rettangoli.

The word is pronounced /retˈtan.ɡo.lo/. It has 4 syllables, with the stress on the second syllable.

The word retto in rettangolo means 'straight' or 'right'. It is the same root used in diritto, meaning 'law' or 'right', because laws are seen as 'straight' paths.
The word angolo can be used metaphorically in Italian to describe a 'point of view' or a specific perspective on a problem.
Rettangolo comes from the Late Latin word rectangulus, which literally meant 'four-angled'.

Ogni quadrato è un rettangolo.
Every square is a rectangle.
This sentence illustrates the relationship between squares and the form rettangolo.
Tatoeba #5226377 by madriot, translation #5223245 by krzysiek
Il quadrato è un tipo di rettangolo, e il rettangolo è un tipo di parallelogramma.
A square is one type of rectangle, and a rectangle is one type of parallelogram.
This sentence describes the classification of a square and the form rettangolo within parallelograms.
Tatoeba #1061241 by leonardo, translation #499403 by blay_paul
Marco ha disegnato un rettangolo sul foglio di carta.
Marco drew a rectangle on the sheet of paper.
Questa stanza ha una forma rettangolare.
This room has a rectangular shape.
Guarda quel rettangolino colorato!
Look at that cute little rectangle!
Ho tagliato il pezzo di carta in una figura rettangolare.
I cut the piece of paper into a rectangular shape.
Il tavolo ha la forma di un rettangolo.
The table is shaped like a rectangle.

Chiara and Matteo are studying geometry together.

Sources

Wiktionary, “rectangle” translations and entries rettangolo, CC BY-SA 4.0, dump of 2026-09-26.
Word origins: Wiktionary entries rettangolo, CC BY-SA 4.0.
Example sentences: Tatoeba CC BY 2.0 FR.

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