A bebida está fria.

A is the feminine singular definite article, meaning the.

It is used because bebida is a feminine singular noun, so the article has to match it:

• o = masculine singular
• a = feminine singular
• os = masculine plural
• as = feminine plural

So:

• a bebida = the drink / the beverage

In Portuguese, every noun has a grammatical gender, usually masculine or feminine. Bebida is a feminine noun, so it takes feminine articles and adjectives.

That is why you get:

• a bebida
• a bebida fria

This does not mean the drink is female in a real-world sense. It is just a grammatical category.

Portuguese has two common verbs for to be: ser and estar.

Here, está is used because the sentence describes a state or condition: the drink is cold right now.

• A bebida está fria. = the drink is cold at the moment / in its current condition

If you said é fria, it would usually sound more like a characteristic or general quality, which is less natural here.

For temperature of food and drinks, Portuguese normally uses estar:

• O café está quente.
• A água está fria.

Está is the third-person singular form of estar in the present tense.

The subject is a bebida, which is singular, so the verb must also be singular.

Present tense of estar:

• eu estou
• você / ele / ela está
• nós estamos
• vocês / eles / elas estão

So a bebida está follows the same pattern as ela está.

Adjectives in Portuguese usually agree with the noun in gender and number.

Since bebida is feminine singular, the adjective must also be feminine singular:

• masculine singular: frio
• feminine singular: fria
• masculine plural: frios
• feminine plural: frias

So:

• o café está frio
• a bebida está fria

Not always. Frio/fria can describe temperature, but it can also describe a person or attitude as cold, distant, or unfriendly.

In this sentence, because the subject is bebida, the meaning is clearly about temperature.

So here fria means physically cold, not emotionally cold.

Normally, no. In standard Portuguese, that sounds incomplete or unnatural in most everyday contexts.

You would usually say:

• A bebida está fria. = The drink is cold.
• Uma bebida está fria. = A drink is cold.

Leaving out the article is only possible in certain special contexts, such as headlines, labels, or very reduced speech, but not as the normal full sentence a learner should copy.

This is the most neutral and natural word order:

• subject + verb + adjective

Portuguese can change word order in some cases, but that usually adds emphasis or sounds more literary, formal, or context-dependent.

For learners, the safest pattern is:

• A bebida está fria.

That is the standard everyday order.

They are different structures:

• A bebida está fria = a full sentence: The drink is cold
• a bebida fria = a noun phrase: the cold drink

So:

• Eu peguei a bebida fria. = I picked up the cold drink
• A bebida está fria. = The drink is cold

This is a very common difference in Portuguese:

• noun + adjective can simply describe the noun
• estar + adjective makes a complete statement about its current state

Everything has to agree in number:

Singular:

• A bebida está fria.

Plural:

• As bebidas estão frias.

Notice the changes:

• a → as
• bebida → bebidas
• está → estão
• fria → frias

Portuguese agreement is very important, so article, noun, verb, and adjective all have to fit together.

Sometimes, yes.

Both are correct, but they are not exactly the same:

• fria = cold
• gelada = very cold / ice-cold / chilled

For drinks, Brazilians often use gelada when they mean pleasantly cold, especially for water, soda, juice, or beer.

Examples:

• A cerveja está gelada.
• A água está gelada.

So A bebida está fria is correct and clear, but in real-life Brazilian Portuguese, gelada can sound more natural if the drink is very cold.