La actriz envía una carta.

Because actriz is a feminine singular noun, and the article has to match it.

• la = feminine singular definite article
• actriz = actress

A related point learners often notice: the feminine form of actor is not actora in standard Spanish here, but actriz.

So:

• el actor = the actor
• la actriz = the actress

Envía is the third-person singular present tense form of enviar.

It is used with:

• él
• ella
• usted
• any singular noun subject, like la actriz

So in this sentence, la actriz is the subject, and envía matches it.

A few present-tense forms of enviar are:

• yo envío
• tú envías
• él/ella/usted envía
• nosotros enviamos
• ellos/ellas/ustedes envían

The accent mark shows that the stress falls on ví: en-ví-a.

Without the written accent, Spanish spelling rules would normally suggest a different stress pattern. The accent also helps show that í and a are pronounced in separate syllables here.

So:

• envía = three syllables: en-ví-a

This is very common in forms of verbs like enviar:

• yo envío
• tú envías
• él envía

Spanish often omits subject pronouns when the subject is already clear.

In this sentence, the subject is explicitly named as la actriz, so adding ella would usually be unnecessary.

Natural:

• La actriz envía una carta.

Possible but usually only for emphasis:

• Ella envía una carta.
• La actriz, ella envía una carta. would sound marked or unnatural in most basic contexts.

Spanish does this much more than English.

Because carta is a feminine singular noun, so it takes the feminine singular indefinite article una.

• un = masculine singular
• una = feminine singular

So:

• una carta = correct
• un carta = incorrect

This is the same agreement pattern as with la actriz: articles must match the noun’s gender and number.

Una carta is the direct object.

It is the thing being sent. In other words, it receives the action of the verb envía.

So the sentence breaks down like this:

• La actriz = subject
• envía = verb
• una carta = direct object

This basic pattern is very common in Spanish: subject + verb + direct object

No. La actriz envía una carta is the most neutral, straightforward order, but Spanish word order is more flexible than English.

This sentence uses the common basic pattern:

• La actriz = subject
• envía = verb
• una carta = object

But Spanish can change the order for emphasis, style, or context. For example, other orders may be possible in certain situations, but La actriz envía una carta is the safest and most natural version for a learner to use.

Usually, no.

In normal Spanish, you generally need the article here:

• La actriz sounds natural.
• Una carta sounds natural.

If you say Actriz envía carta, it sounds like a headline, note-taking style, or very unnatural everyday Spanish.

Spanish uses articles more often than English in many situations, so learners should usually keep them unless they know there is a specific reason to omit them.

A simple approximation is:

• actriz ≈ ak-TREES
• envía ≈ em-BEE-ah

A few helpful notes:

• In most of Latin America, z in actriz sounds like s
• envía is stressed on ví
• The v in Spanish does not sound exactly like the English v; it is closer to a soft b sound in many contexts

So the rhythm is:

• ac-TRIZ
• en-VÍ-a