Learn Italian: Gli specchi sono puliti.

In Italian, masculine plural words usually take the article i. However, because specchi starts with an "s" followed by a consonant (the letter "p"), it requires the special article gli. You will also use gli before masculine plural words starting with vowels, z, gn, or ps.

What is the singular form of gli specchi?

The singular is lo specchio (the mirror). Just like gli is the special plural article, lo is the special singular article used before masculine words starting with an "s" and a consonant.

Why does the adjective puliti end in an "i"?

Adjectives in Italian must match the gender and number of the noun they describe. Since specchi is masculine and plural, the dictionary form of the adjective, pulito (clean), changes its ending to -i to become puliti.

How is the "cch" in specchi pronounced?

It has a hard "k" sound. In Italian, adding an "h" after a "c" keeps the sound hard before an "i" or "e". Without the "h", it would sound like the "ch" in the English word "cheese".