El taquillero vendió las entradas.

Vendió is the preterite form of vender and means the action is seen as completed in the past.

• vende = sells / is selling (present)
• vendía = was selling / used to sell (imperfect, more ongoing or habitual in the past)
• vendió = sold (completed past action)

So this sentence presents the sale as a finished event.

Vendió is third person singular in the preterite, so it can mean:

• he sold
• she sold
• it sold
• you sold (formal usted)

Here, because the subject is el taquillero, it means he sold.

The accent mark shows the correct stress: ven-DIÓ.

It is also part of the standard written form of the third person singular preterite for many -er and -ir verbs, for example:

• comió
• salió
• vendió

Without the accent, the spelling would be incorrect.

El is the masculine singular definite article, meaning the.

It agrees with taquillero, which is a masculine singular noun. Spanish articles must match the noun in gender and number.

If the worker were female, you would normally say la taquillera.

Because entradas is feminine plural.

So the article must also be feminine plural:

• la entrada = the ticket
• las entradas = the tickets

Spanish articles always agree with the noun they go with.

Spanish uses the definite article the more often than English does. Las entradas usually suggests the tickets are specific or already understood from context.

For example, it could mean the speaker and listener both know which tickets are being talked about. If you said just vendió entradas, that would sound more like he sold tickets in a general sense.

In Spain, taquillero usually means a ticket seller or box-office clerk: someone who works at a taquilla and sells tickets.

It is commonly used for places like:

• cinemas
• theatres
• concert venues
• stations
• stadiums

The feminine form is taquillera.

It can mean both, depending on context. In Spain, entrada very often means an admission ticket, especially for events like films, concerts, or museums.

That is why las entradas here is naturally understood as the tickets. For some other kinds of tickets, Spanish may use other words, such as billete for many transport tickets.

Because las entradas is a thing, not a person.

Spanish uses the personal a mainly before specific human direct objects, for example:

• Vio a María.
• Llamé al médico.

But with things, you normally do not use it:

• Vendió las entradas.

Yes, but El taquillero vendió las entradas is the most neutral and straightforward order: subject + verb + object.

Spanish is more flexible than English, so other orders are possible for emphasis or in special contexts. Still, for a learner, this version is the most natural basic pattern.

It is the thing being sold, so it receives the action of the verb vendió.

A good way to test this is to replace it with a direct object pronoun:

• El taquillero las vendió.

Here, las stands for las entradas, which confirms that it is the direct object.

Yes, depending on context. In Spain, the present perfect (ha vendido) is often used for a past action that is still connected to the present, especially with time expressions like hoy, esta mañana, or esta semana.

• Hoy el taquillero ha vendido las entradas.
• Ayer el taquillero vendió las entradas.

So vendió is a completed past event, while ha vendido may sound more connected to now.

You would usually change the noun and article to the feminine form:

La taquillera vendió las entradas.

The verb vendió stays the same, because Spanish past-tense verb forms do not change for the gender of the subject.