Le train supprimé reste au terminus.

Yes, supprimer often means to delete, to remove, or to suppress in other contexts. But in transport French, un train supprimé commonly means a cancelled train.

So in railway or public transport language:

• supprimer un train = to cancel a train
• train supprimé = cancelled train

This is very normal French, even if the most literal English translation of supprimé would sound odd.

Supprimé is a past participle of supprimer, but here it functions like an adjective describing train.

So:

• le train = the train
• supprimé = cancelled

Together, le train supprimé means the cancelled train.

In French, many descriptive words, including participles used adjectivally, often come after the noun. So French says:

• le train supprimé

where English says:

• the cancelled train

Because train is a masculine singular noun.

When a past participle is used like an adjective, it usually agrees with the noun it describes:

• masculine singular: supprimé
• feminine singular: supprimée
• masculine plural: supprimés
• feminine plural: supprimées

Since le train is masculine singular, the correct form is supprimé.

Reste is the third-person singular present form of rester, which means to stay, to remain, or to keep staying.

So:

• je reste = I stay
• tu restes = you stay
• il/elle/on reste = he/she/one stays
• le train reste = the train remains/stays

In this sentence, reste means that the train stays or remains at the terminus.

Because à + le contracts to au in French.

So:

• à + le = au
• à + les = aux

That means:

• au terminus = at the terminus

This contraction is required in standard French.

Le terminus is the end of a line, the final station or stopping point for a route.

In transport contexts, it refers to the place where the train, bus, tram, etc. ends its journey.

So au terminus means:

• at the terminus
• at the end of the line
• sometimes more naturally in English: at the final station

The first le is the definite article before train:

• le train = the train

The second le is hidden inside au, because:

• au = à + le

So au terminus literally comes from à le terminus.

They are doing two different jobs:

• le train = identifies the noun train
• au terminus = gives the location at the terminus

Yes, annulé can also mean cancelled, and in many contexts it is very natural. But in transport announcements, supprimé is especially common and idiomatic.

Very roughly:

• annulé = cancelled
• supprimé = cancelled/withdrawn from service

For trains, buses, and other services, supprimé is often the more standard operational wording.

Yes. Supprimé describes the state of the train: it is cancelled. Then reste tells you what it does or where it is: it remains at the terminus.

So the structure is:

• [noun] + [description] + [verb] + [place]

Here:

• Le train = the train
• supprimé = cancelled
• reste = remains/stays
• au terminus = at the terminus

Not in natural English. Even though supprimé is related to suppressed in some contexts, for transport English would normally say:

• cancelled train
• the train has been cancelled

So this is a good example where a direct cognate is not the best translation.

French often uses a past participle more compactly instead of a longer relative clause.

So these are related in meaning:

• Le train supprimé reste au terminus.
• Le train qui est supprimé reste au terminus.

But the first version is shorter and more natural here.

English does the same kind of thing:

• the cancelled train instead of
• the train which is cancelled

Sometimes rester can be translated in different ways depending on context, including remain, stay, or be left. But here, because the subject is the train and the location is au terminus, the most natural sense is:

• stays at the terminus
• remains at the terminus

Is left at the terminus might be possible in English in some contexts, but it sounds less direct here.

It sounds more like transport or operational language than casual everyday conversation.

In ordinary speech, a person might say something longer or clearer, for example:

• Le train est supprimé et reste au terminus.
• Ce train est supprimé ; il reste au terminus.

But short, compact phrasing like Le train supprimé reste au terminus fits well in signage, announcements, or railway information.