L'uccello muove l'ala.

Because uccello begins with a vowel, the masculine singular definite article is shortened before it:

• il
  • consonant: il gatto
• lo
  • certain consonants: lo studente
• l'
  • vowel: l'uccello

So l'uccello means the bird.

For the same reason: ala starts with a vowel, so la becomes l' before it.

• la penna
• la casa
• l'ala
• l'amica

This shortening is called elision.

Italian often uses the definite article where English uses a possessive like my, your, his, its—especially with body parts.

So instead of saying something like its wing, Italian commonly says the wing, as long as the owner is clear from context.

That is why L'uccello muove l'ala sounds natural in Italian.

Because ala is a feminine noun in Italian. Its singular article is therefore la / l'.

• singular: l'ala
• plural: le ali

This is something you mostly have to learn with the noun, although the ending -a often suggests a feminine noun.

Muove is the third person singular of muovere.

Present tense of muovere:

• io muovo
• tu muovi
• lui/lei muove
• noi muoviamo
• voi muovete
• loro muovono

Here, l'uccello is singular, so the verb is muove.

Muovere means to move. In this sentence, it means that the bird moves its wing.

Depending on context, English might also say:

• moves its wing
• stirs its wing
• shifts its wing

If you wanted the idea of flapping, Italian would more naturally use another verb, such as sbattere le ali in many contexts.

Yes, Italian can sometimes change word order more freely than English, but subject + verb + object is the most neutral and basic order here:

• L'uccello = subject
• muove = verb
• l'ala = direct object

So this sentence is the standard, straightforward way to say it.

A different order is possible in special contexts, but it would usually add emphasis or sound more literary.

A simple pronunciation guide:

• l'uccello ≈ loo-CHEL-lo
• muove ≈ MWO-ve
• l'ala ≈ A-la

A few useful points:

• uccello has a doubled cc, so the consonant is pronounced more strongly.
• ce in uccello sounds like che in chess.
• uo in muove is pronounced together, roughly mwo.

In a basic sentence like this, yes: uccello means bird.

However, you should know that in some informal or vulgar contexts, uccello can also be slang for male genitals. That is not the meaning here at all, but learners may come across it.

The plurals are:

• l'uccello → gli uccelli = the birds
• l'ala → le ali = the wings

Notice that ala has an irregular-looking plural:

• singular: ala
• plural: ali

That change is normal for this noun.

Yes, but it changes the meaning slightly.

• L'uccello muove l'ala = The bird moves the/its wing
• Un uccello muove un'ala = A bird moves a wing

Using un / un' makes the sentence less specific. It no longer refers to a particular bird and a clearly understood wing in the same way.