Cada assinante segue o feed.

Because cada means each, and in Portuguese it is normally followed by a singular noun.

So:

• cada assinante = each subscriber
• not cada assinantes

This is similar to English, where we say each subscriber, not each subscribers.

Because the subject is grammatically singular, the verb is singular too:

• Cada assinante segue...

The subject of the sentence is cada assinante, which is treated as singular.

So Portuguese uses the ele/ela/você form of the verb:

• seguir = to follow
• ele/ela segue = he/she follows

That is why the sentence has:

• Cada assinante segue o feed

Even though the idea may refer to many people in total, each subscriber is considered one at a time, so the verb stays singular.

Segue comes from the verb seguir, meaning to follow.

Present tense:

• eu sigo
• você/ele/ela segue
• nós seguimos
• vocês/eles/elas seguem

It has a small stem change in some forms:

• seguir → sigo, segue, seguem

So yes, it is not completely regular.

In Brazilian Portuguese, segue is pronounced roughly like SEH-gee.

A few notes:

• The g in segue sounds like the g in get, not like the English j
• The final e is pronounced, often like ee or a light i sound in many Brazilian accents

So:

• segue ≈ SEH-gi

Also, in gue, the u is not pronounced here. It mainly serves to keep the g hard.

Portuguese uses definite articles more often than English does.

Here, o is the masculine singular definite article, meaning the:

• o feed = the feed

So the structure is simply:

• segue o feed = follows the feed

In Portuguese, using the article before a noun like this is very normal.

Loanwords in Portuguese have to be assigned a grammatical gender, and feed is commonly treated as masculine in Brazilian Portuguese:

• o feed

There is not always a deep logical reason for the gender of borrowed words; often it is just the form that became standard in usage.

So if you are talking about a social media or content feed, o feed is the usual choice.

Yes, feed is very commonly used in Brazilian Portuguese, especially in internet, social media, and tech contexts.

For example:

• o feed do Instagram
• aparecer no feed
• organizar o feed

A more fully Portuguese alternative may exist depending on context, but in everyday digital language, feed is extremely common and natural.

Because seguir normally takes a direct object when it means to follow something or someone.

So:

• seguir alguém
• seguir uma página
• seguir o feed

That is why there is no preposition here.

By contrast, no feed means in the feed, which is a different idea:

• A postagem aparece no feed = The post appears in the feed

So:

• seguir o feed = to follow the feed
• aparecer no feed = to appear in the feed

Yes, but the meaning changes.

• o feed = the feed
• um feed = a feed

So:

• Cada assinante segue o feed suggests a specific feed, or a feed understood from context
• Cada assinante segue um feed suggests that each subscriber follows some feed, not necessarily the same one

The article changes how specific the noun sounds.

Assinante usually means subscriber.

It comes from assinar, which often means to sign or to subscribe, depending on context.

Examples:

• assinante de jornal = newspaper subscriber
• assinante de streaming = streaming subscriber

It can refer to a person who pays for or signs up for a service. In some contexts, English subscriber is a better match than member or follower.

Assinante is a noun with the same form for both masculine and feminine in the singular.

So you can say:

• o assinante = the male subscriber
• a assinante = the female subscriber

In your sentence, cada assinante is neutral in the sense that it can refer to any subscriber unless context tells you otherwise.

Yes. In fact, that is exactly what is happening.

Portuguese often omits subject pronouns when the verb form already makes the subject clear enough.

Instead of saying:

• Cada assinante, ele segue o feed

Portuguese normally just says:

• Cada assinante segue o feed

Adding a pronoun like ele here would usually sound unnecessary.

The sentence follows the basic Portuguese word order:

• Cada assinante = subject
• segue = verb
• o feed = object

So it is:

Subject + Verb + Object

This is the most neutral and natural order in Portuguese, just like:

• O aluno lê o livro
• A empresa vende produtos

A rough pronunciation guide is:

KAH-da ah-see-NAHN-che SEH-gi oo FEED-jee

A few helpful details:

• cada ≈ KAH-da
• assinante ≈ ah-see-NAHN-chee or ah-see-NAHN-ti, depending on accent
• segue ≈ SEH-gi
• o often sounds like oo
• feed in Brazilian speech is often adapted, and many speakers pronounce it something like FI-dji or FEE-dji

The exact pronunciation of the English loanword feed may vary from speaker to speaker.