El intento falló.

El intento means the attempt.

• el = the for a masculine singular noun
• intento = attempt

So El intento is a noun phrase, not a verb. It refers to the action or effort as a thing: the attempt.

Because intento here is a noun, while intentar is the verb to try / to attempt.

Compare:

• intentar = to try
• un intento = an attempt
• el intento = the attempt

Examples:

• Voy a intentar abrir la puerta. = I’m going to try to open the door.
• El intento falló. = The attempt failed.

So in your sentence, Spanish is using the noun attempt, not the verb to try.

Falló is the preterite form of fallar for él / ella / usted.

So:

• fallar = to fail
• falló = failed

This tense is used for a completed action in the past. In El intento falló, the failure is seen as a finished event: The attempt failed.

The accent mark shows the stress and also helps distinguish forms.

• fallo (no accent) can mean I fail or a flaw / a ruling, depending on context
• falló (with accent) means he/she/it failed or you failed (formal usted)

So the accent is important because it changes both pronunciation and meaning.

A simple pronunciation guide:

• El ≈ el
• intento ≈ een-TEN-to
• falló ≈ fa-YO

In standard Spain Spanish:

• ll in falló is usually pronounced like a y sound
• the stress falls on the last syllable of falló

So the whole sentence sounds roughly like:

el een-TEN-to fa-YO

No. Fallar is a very useful verb with several related meanings.

It can mean:

• to fail: El intento falló.
• to malfunction / break down: El motor falló. = The engine failed.
• to let someone down: No te fallaré. = I won’t let you down.

So fallar can be used for attempts, plans, machines, systems, and even people.

Yes, you could, and it would also mean The attempt failed.

But there is a slight nuance:

• falló is broader and more neutral
• fracasó sounds more like was unsuccessful / ended in failure, often a bit stronger or more dramatic

So:

• El intento falló. = simple, direct
• El intento fracasó. = a little more emphatic or formal in some contexts

Both are natural, but falló is very straightforward.

Normally, no. In standard Spanish, you would usually need the article here: El intento falló.

That is because intento is being used as a specific countable noun: the attempt.

• El intento falló. = The attempt failed.

Without the article, Intento falló, it sounds incomplete or ungrammatical in normal Spanish.

If you wanted a more general or indefinite meaning, you could say:

• Un intento falló. = An attempt failed.

Because intento is a masculine noun in Spanish.

So it takes:

• el in the singular
• los in the plural

Examples:

• el intento
• los intentos

This gender is grammatical, not biological. Since intento is masculine, the article has to match it.

Grammatically, falló is the same form for:

• él falló = he failed
• ella falló = she failed
• usted falló = you failed (formal)
• and with things, it failed

In this sentence, the subject is El intento, so in English it corresponds to it:

• El intento falló. = The attempt failed.

Yes. Falló el intento is possible.

Spanish word order is more flexible than English. Both mean the same thing:

• El intento falló.
• Falló el intento.

The first version is the most neutral if you are simply stating what happened.

The second may sound slightly more literary, emphatic, or context-driven, especially if the failure is being highlighted first.

Yes, it is natural and correct, but whether it sounds everyday depends on context.

It works well in:

• narration
• news-style writing
• formal description
• storytelling

In casual conversation, people might also say things like:

• No funcionó. = It didn’t work.
• Salió mal. = It went wrong.
• No tuvo éxito. = It wasn’t successful.

So El intento falló is perfectly good Spanish, though in informal speech people often choose other expressions depending on what exactly failed.