Die Bildunterschrift beschreibt den verblassten Fotoabzug.

Bildunterschrift is a compound noun, which is very common in German.

It is made of:

• Bild = picture, image
• Unterschrift = caption, signature, inscription underneath

So Bildunterschrift means picture caption or caption.

German often joins nouns into one word instead of keeping them separate, where English would use something like picture caption or caption under a picture.

Die is the definite article for Bildunterschrift.

Here it means the.

The noun Bildunterschrift is feminine, so in the nominative singular it takes die:

• die Bildunterschrift = the caption

Since Bildunterschrift is the subject of the sentence, nominative is the correct case.

The subject is the thing doing the action.

In this sentence:

• Die Bildunterschrift = the caption
• beschreibt = describes
• den verblassten Fotoabzug = the faded photo print

So the caption is doing the describing. That makes die Bildunterschrift the subject.

A useful clue is also the article:

• die here is nominative feminine singular

Beschreibt is the correctly conjugated form of the verb beschreiben for er/sie/es and for singular nouns.

The subject is die Bildunterschrift, which is a singular noun, so the verb must be singular:

• ich beschreibe
• du beschreibst
• er/sie/es beschreibt
• wir beschreiben
• ihr beschreibt
• sie/Sie beschreiben

So:

• Die Bildunterschrift beschreibt ... = The caption describes ...

Because Fotoabzug is the direct object of the verb beschreibt, so it must be in the accusative case.

The verb beschreiben normally takes a direct object: you describe something.

Fotoabzug is masculine:

• nominative: der Fotoabzug
• accusative: den Fotoabzug

So:

• der verblasste Fotoabzug = the faded photo print (as subject)
• den verblassten Fotoabzug = the faded photo print (as direct object)

That is why the sentence uses den.

Because German adjectives change their endings depending on case, gender, number, and the type of article before them.

Here we have:

• den = definite article
• Fotoabzug = masculine singular
• function = accusative object

After a definite article in the masculine accusative, the adjective takes -en.

So:

• nominative masculine: der verblasste Fotoabzug
• accusative masculine: den verblassten Fotoabzug

That is why you see verblassten.

Verblasst means faded.

It is often used for colors, photographs, ink, memories, or anything that has lost its strength or vividness over time.

Examples:

• ein verblasstes Foto = a faded photo
• verblasste Farben = faded colors

In this sentence, it describes the Fotoabzug as old or no longer clear and vivid.

Not exactly.

Foto means photo or photograph in a general sense.

Fotoabzug is more specific. It refers to a photo print, especially a printed photographic copy.

It is made up of:

• Foto = photo
• Abzug = print, copy, pull-off

So Fotoabzug suggests a physical printed photograph rather than just an image in general.

This sentence uses normal German main-clause word order:

Subject + verb + object

• Die Bildunterschrift = subject
• beschreibt = verb
• den verblassten Fotoabzug = object

So the structure is very straightforward.

A main clause in German usually puts the finite verb in the second position, and that is exactly what happens here.

No, because the articles must match the gender of the noun.

The correct genders are:

• die Bildunterschrift = feminine
• der Fotoabzug = masculine

So:

• die Bildunterschrift is correct
• das Bildunterschrift is incorrect
• der Fotoabzug is correct in nominative
• die Fotoabzug is incorrect

And in this sentence, because Fotoabzug is accusative masculine, it becomes den Fotoabzug.

The dictionary forms are:

• die Bildunterschrift = caption
• beschreiben = to describe
• verblasst = faded / faded out; often listed from the verb verblassen = to fade
• der Fotoabzug = photo print

In the sentence, some forms are changed:

• beschreibt is the conjugated verb form of beschreiben
• verblassten is the declined adjective form of verblasst
• den Fotoabzug shows the accusative form of der Fotoabzug

It is very similar. Beschreiben usually means to describe in the normal English sense: to give an account of what something looks like or is like.

So:

• Die Bildunterschrift beschreibt den verblassten Fotoabzug. = The caption describes the faded photo print.

German uses it much like English:

• Er beschreibt das Haus. = He describes the house.
• Kannst du die Szene beschreiben? = Can you describe the scene?

Then you would need nominative, not accusative.

So den verblassten Fotoabzug would become:

• der verblasste Fotoabzug

For example:

• Der verblasste Fotoabzug liegt auf dem Tisch. = The faded photo print is lying on the table.

This contrast is useful:

• Der verblasste Fotoabzug = subject form
• Den verblassten Fotoabzug = object form

It helps you see both the article change and the adjective ending change.