Frauðplastið er létt.

to be

Breakdown of Frauðplastið er létt.

• léttur: light
• frauðplastið: expanded polystyrene

Questions & Answers about Frauðplastið er létt.

Why does frauðplast end in -ið here?

Because -ið is the definite article attached to the end of the noun. Icelandic often says the by adding it as an ending instead of using a separate word.

• frauðplast = foam plastic / Styrofoam
• frauðplastið = the foam plastic

So Frauðplastið er létt means The foam plastic is light.

What gender is frauðplastið?

It is neuter singular.

You can tell this from two things:

• the definite ending -ið, which is a common neuter singular definite ending
• the adjective létt, which is the form that agrees with a neuter singular noun here

In Icelandic, adjectives have to agree with the noun in gender, number, and case.

Why is the adjective létt and not léttur?