Il bambino teme il demone.

Il is the masculine singular definite article, meaning the.
So il bambino means the child / the boy.

In Italian, articles are used more often than in English, so leaving out il would usually sound incomplete here unless you were speaking in a very different context, like a dictionary entry or a headline.

It can mean either, depending on context.

• bambino = child / young boy
• bambina = girl / young female child

In many contexts, bambino is often understood as boy, but sometimes English translates it more neutrally as child.

Teme is the third person singular present tense of the verb temere, which means to fear.

So:

• io temo = I fear
• tu temi = you fear
• lui/lei teme = he/she fears

Since il bambino is singular, the verb must also be singular: teme.

Italian usually does not need subject pronouns when the verb ending already shows who the subject is.

So instead of saying:

• Lui teme il demone

Italian normally just says:

• Il bambino teme il demone

The subject is already clearly stated as il bambino, so lui would be unnecessary unless you wanted emphasis or contrast.

This is the most neutral and common word order in Italian:

subject + verb + object

• Il bambino = subject
• teme = verb
• il demone = direct object

You can change word order in Italian for emphasis, but the basic version is the most natural for learners:

• Il bambino teme il demone.

A reordered version like Il demone lo teme il bambino would sound marked or literary and is not the normal starting pattern to learn.

Because demone is the direct object of the verb teme.

The child fears the demon directly, so no preposition is needed.

• temere qualcosa / qualcuno = to fear something / someone

So:

• il demone = the demon

If it were al demone, that would mean to the demon, which would not fit this verb here.

Mostly yes. Temere is a fairly direct equivalent of to fear, and it takes a direct object:

• Teme il demone = He fears the demon

However, in everyday spoken Italian, people often use expressions like:

• avere paura di = to be afraid of

So a very common alternative would be:

• Il bambino ha paura del demone.

Both are correct, but temere can sound a bit more formal, literary, or elevated in some contexts than everyday avere paura di.

Because demone is a masculine singular noun beginning with a normal consonant, so it takes il.

Common masculine singular articles:

• il before most consonants: il demone
• lo before z, s + consonant, ps, gn, etc.
• l' before vowels

Examples:

• il ragazzo
• lo studente
• l'amico

So il demone follows the regular pattern.

A simple learner-friendly guide:

• teme ≈ TEH-meh
• demone ≈ DEH-mo-neh

A few pronunciation points:

• Italian e here is a clear vowel, not like the English silent e
• Every written vowel is pronounced
• demone has three syllables: de-mo-ne

So the full sentence is roughly:

eel bam-BEE-no TEH-meh eel DEH-mo-neh

Demone literally means demon, especially in religious, fantasy, mythological, or dramatic contexts.

Depending on context, it can also be used figuratively, but the basic meaning is the supernatural creature.

In ordinary everyday speech, it is less common than basic vocabulary words, but it is a perfectly normal Italian noun.

Yes. That would mean The child fears a demon.

The difference is:

• il demone = the demon → a specific demon
• un demone = a demon → any demon / an unspecified demon

So the article changes the specificity, just as in English.

You would make both the nouns and the verb plural:

• I bambini temono i demoni. = The children fear the demons.

Changes:

• il bambino → i bambini
• teme → temono
• il demone → i demoni

This is a good example of how Italian often changes several words, not just one, when moving from singular to plural.