L'entrevista de feina és demà.

Because entrevista begins with a vowel sound. In Catalan, the feminine singular article la usually drops its final vowel before a word starting with a vowel or h, becoming l'.

So:

• la casa = the house
• l'entrevista = the interview

This is similar to how French does l' before vowels.

Yes, entrevista is feminine. You can tell because it takes the feminine article la / l'.

Many Catalan nouns ending in -a are feminine, and entrevista follows that pattern:

• la entrevista → contracted to l'entrevista

So if you want to describe it with an adjective, the adjective would also usually be feminine:

• l'entrevista important

Literally, de feina means of work or for work. In natural English, though, this is best translated as job interview.

Catalan often uses de + noun where English uses a noun as an adjective:

• entrevista de feina = job interview
• targeta de crèdit = credit card
• sala d'espera = waiting room

So de feina is a normal and natural way to specify what kind of interview it is.

Yes, you might hear entrevista laboral, and it is understandable. However, entrevista de feina is very common and sounds natural in everyday Catalan.

There can be a slight difference in feel:

• entrevista de feina = everyday, common
• entrevista laboral = a bit more formal or technical

For most learners, entrevista de feina is the safest everyday choice.

És means is, from the verb ser. The accent is important because it distinguishes és from es.

• és = is
• es = a pronoun, often like himself / herself / itself or part of certain verb forms

So in this sentence, és must have the accent because it is the verb.

In Catalan, you normally do not use a preposition before demà. So és demà is the natural way to say it is tomorrow.

English uses on with days and dates in many cases, but Catalan often does not use a preposition with time expressions like this:

• És demà = It’s tomorrow
• Arribo dilluns = I arrive on Monday
• Va passar ahir = It happened yesterday

So the lack of on is completely normal.

Yes. Demà és l'entrevista de feina is grammatical and natural. It puts more emphasis on demà.

A rough difference in feel:

• L'entrevista de feina és demà = neutral statement; the interview is tomorrow
• Demà és l'entrevista de feina = emphasizes tomorrow

Catalan allows this kind of flexibility more easily than English in some contexts.

A simple learner-friendly pronunciation is:

lun-treh-BEES-tuh duh FAY-nyuh ez duh-MAH

A few helpful notes:

• l' links directly to entrevista
• v in most Catalan varieties sounds like b
• feina sounds roughly like FAY-nyuh
• demà is stressed on the last syllable: de-MÀ
• és is a short stressed word, roughly ez

Pronunciation varies somewhat by region, but this will be understood well.

They are related, but not always identical. Both are connected with work, but feina is very common when talking about a job or work to do, while treball can also mean work in a broader or more abstract sense.

For this sentence, entrevista de feina is the usual expression for job interview. You would not normally replace it with entrevista de treball here.

So for this context, just learn:

• feina = the normal word in job interview

Catalan often leaves out subject pronouns when they are not needed, and it also does not need a dummy subject like English it in sentences such as It is tomorrow.

So Catalan simply says:

• És demà = It is tomorrow

This is very normal. English requires it, but Catalan does not.

Not really in natural English. Even though feina is related to work, entrevista de feina is the standard expression for job interview.

So when you see entrevista de feina, you should understand it as a fixed everyday phrase meaning job interview, not translate it word-for-word every time.