L'ordre és important.

Because ordre begins with a vowel sound, the masculine singular article el is shortened to l' before it.

• el + ordre → l'ordre

This is very common in Catalan:

• l'amic = the friend
• l'escola = the school
• l'hotel = the hotel

So l'ordre simply means the order.

It is masculine.

That is why the full article is el:

• el ordre
• contracted before a vowel: l'ordre

So in this sentence, l'ordre is a masculine singular noun.

The accent is important because és and es are different words in Catalan.

• és = is (from the verb ser)
• es = a pronoun, often like oneself / himself / herself / itself, depending on context

So in L'ordre és important, és is the verb is.

The accent also helps show the stressed vowel.

Because Catalan usually uses ser for essential qualities, definitions, or general statements.

• L'ordre és important = Order is important

Here, important is presented as a general characteristic, not a temporary condition.

Very roughly:

• ser = to be, in a more essential/general sense
• estar = to be, in a more temporary/state-based sense

So és is the natural choice here.

In normal Catalan, the article is needed here.

• L'ordre és important = natural
• Ordre és important = not normal standard usage

Catalan often uses the definite article with general or abstract nouns where English may sometimes omit it. So even though English says Order is important, Catalan normally says L'ordre és important.

In the singular, important stays the same for masculine and feminine.

• L'ordre és important
• La disciplina és important

In the plural, it becomes importants:

• Els detalls són importants
• Les regles són importants

So here, important agrees with a singular noun, and its form is simply important.

Because here important is not directly modifying the noun inside a noun phrase. It is the predicate adjective after the verb és.

Structure:

• L'ordre = subject
• és = verb
• important = predicate adjective

So the sentence means:

• Order is important

If you said l'ordre important, that would mean the important order, which is a different structure and meaning.

A simple learner-friendly pronunciation is roughly:

LOR-druh es im-por-TANT

A few useful notes:

• l'ordre: the l' links directly to ordre
• és sounds like ess
• important is similar to English, but with Catalan pronunciation and final stress on -tant

Depending on the dialect, the exact vowel sounds can vary.

Yes. Ordre can mean things like:

• order as arrangement or organization
• order as command or instruction
• order in the sense of neatness or orderliness

In this sentence, the intended meaning is usually the general idea of order as something valuable or necessary.

Yes. It is a completely natural and correct Catalan sentence.

It sounds neutral and standard, and it could be used in many contexts:

• talking about organization
• talking about rules
• talking about structure or discipline

So L'ordre és important is a good model sentence for learners.