Der Deckel ist fest.

The lid is tight.

Breakdown of Der Deckel ist fest.

• sein: to be
• der Deckel: the lid
• fest: fixed

Questions & Answers about Der Deckel ist fest.

What exactly does Deckel mean here? Is it a lid, a cap, or something else?

Deckel is a general word for a lid or cover – something that closes an opening.

Typical uses:

• pot lid: der Deckel vom Topf
• jar lid: der Deckel vom Glas
• bottle cap: sometimes der Deckel, often more specifically der Schraubverschluss (screw cap)
• box lid: der Deckel der Schachtel

So in Der Deckel ist fest., you would usually imagine a pot or jar lid that is on tightly.

---

Why is it der Deckel and not das Deckel or die Deckel?

Deckel is grammatically masculine in German, so in the basic subject form (nominative singular) it takes der:

• der Deckel – the lid (subject form: “The lid is …”)

Other useful forms:

• plural: die Deckel – the lids
• as a direct object: Ich öffne den Deckel. – I open the lid.

There is no way to “guess” the gender from the form; you just have to learn der Deckel as a unit.

---

What does fest mean here? Does it just mean “hard”?