Die Widerrufsfrist endet morgen.

It follows a very common German sentence pattern:

Subject + verb + time expression

• Die Widerrufsfrist = the subject
• endet = the verb
• morgen = a time word

So literally, it is:

The cancellation period ends tomorrow.

German main clauses usually put the finite verb in the second position, and that is exactly what happens here.

Die is the definite article, meaning the.

Here, die marks Widerrufsfrist as a feminine singular noun in the nominative case.

So:

• die Frist = the deadline / period
• die Widerrufsfrist = the cancellation period

A learner might wonder whether die could also mean plural. Yes, die can also be a plural article in German, but here the verb endet is singular, so we know Widerrufsfrist is singular, not plural.

Widerrufsfrist is feminine.

The easiest clue is the article:

• die Widerrufsfrist = feminine

Also, the final part of the compound is Frist, and Frist is a feminine noun:

• die Frist

In German compound nouns, the last part determines the gender.
So because Frist is feminine, Widerrufsfrist is feminine too.

Because German very often combines nouns into compound nouns.

Widerrufsfrist is made up of:

• Widerruf = cancellation / revocation
• Frist = deadline / period / time limit

Together:

• Widerrufsfrist = cancellation period / revocation period / withdrawal deadline

English usually writes these as separate words, but German often joins them into one word.

That -s- is a linking element often used in German compounds. It is sometimes called a Fugen-s.

So:

• Widerruf
• Frist
• combined: Widerrufsfrist

This -s- does not usually change the meaning. It mainly helps connect the parts smoothly.
German learners often just have to learn these compound forms as vocabulary.

The infinitive is enden = to end.

In this sentence, it is conjugated for third person singular, because the subject is die Widerrufsfrist = it / the cancellation period.

Present tense of enden:

• ich ende
• du endest
• er/sie/es endet
• wir enden
• ihr endet
• sie/Sie enden

So:

• Die Widerrufsfrist endet = The cancellation period ends

This is the present tense:

• endet = ends

German very often uses the present tense to talk about the future when the time is clear from context.

Because the sentence includes morgen (tomorrow), the future meaning is obvious.

So German does not need a separate future form here.
This is completely normal and very common.

Compare:

• Die Widerrufsfrist endet morgen. = The cancellation period ends tomorrow.
• literally: The cancellation period ends tomorrow.

English can do something similar too, though German does it even more often.

Here it means tomorrow.

German morgen can mean:

• tomorrow as an adverb: morgen
• morning as a noun: der Morgen

The difference is usually shown by grammar and capitalization:

• morgen = tomorrow
• am Morgen / der Morgen = in the morning / the morning

In your sentence, morgen is lowercase and used as a time adverb, so it means tomorrow.

Yes. German word order is flexible, but the finite verb usually stays in second position in a main clause.

So these are both correct:

• Die Widerrufsfrist endet morgen.
• Morgen endet die Widerrufsfrist.

Both mean the same thing, but the emphasis shifts slightly:

• Die Widerrufsfrist endet morgen. → neutral statement
• Morgen endet die Widerrufsfrist. → stronger focus on tomorrow

What you cannot do in a normal main clause is keep the verb in third position after moving morgen to the front.

So this is wrong:

• Morgen die Widerrufsfrist endet. ❌

In German, all nouns are capitalized.

So:

• Widerrufsfrist is capitalized because it is a noun.

Also:

• Die is capitalized here because it is the first word of the sentence.

If it appeared in the middle of a sentence, the article would normally be lowercase:

• Ich glaube, dass die Widerrufsfrist morgen endet.

Not really. It sounds formal and often appears in legal, commercial, or consumer-rights contexts.

You might see it in things like:

• online purchase terms
• contracts
• cancellation policies
• consumer protection information

A native speaker would understand it, but it is not the kind of word used in casual daily conversation very often.

A rough pronunciation guide is:

VEE-der-roofs-frist

A few helpful points:

• W in German sounds like English v
• ie usually sounds like a long ee
• u in rufs sounds like oo
• Frist has a short i, like in sit

So a rough English approximation is:

VEE-der-roofs-frist

Not perfect, but close enough for a learner to start with.

Yes, if the context already makes clear which deadline you mean.

• Die Widerrufsfrist endet morgen. = The cancellation period ends tomorrow.
• Die Frist endet morgen. = The deadline/period ends tomorrow.

The shorter version is less specific.
The longer version is more precise and is especially useful in legal or customer-service contexts.