Η ηλεκτρονική θυρίδα δίνει αριθμό πρωτοκόλλου.

Η is the definite article meaning the.

In this sentence, Η goes with θυρίδα and means the electronic mailbox/portal/inbox.

Why Η specifically?

Because θυρίδα is:

• feminine
• singular
• nominative (the subject of the sentence)

So the article has to match it:

• η = feminine singular nominative

So:

• Η θυρίδα = the mailbox / the portal

Because ηλεκτρονική is an adjective meaning electronic, and it has to agree with the noun it describes.

It describes θυρίδα, which is:

• feminine
• singular
• nominative

So the adjective must also be:

• feminine
• singular
• nominative

That is why you get:

• η ηλεκτρονική θυρίδα = the electronic portal/mailbox

Compare the adjective in other forms:

• ηλεκτρονικός = masculine
• ηλεκτρονική = feminine
• ηλεκτρονικό = neuter

Literally, θυρίδα can mean a small opening, slot, box, or compartment depending on context.

In modern administrative or digital contexts, ηλεκτρονική θυρίδα often means something like:

• electronic mailbox
• electronic portal
• digital inbox
• online filing box/account

So it is not necessarily a physical mailbox. In this sentence, it most likely refers to a digital government or administrative portal that issues or displays a reference number.

δίνει is the 3rd person singular present tense of δίνω, meaning to give.

So δίνει means:

• it gives
• it provides
• it issues

Why 3rd person singular?

Because the subject is η ηλεκτρονική θυρίδα, which is singular:

• The electronic portal gives/provides...

This is a very common verb form in Greek.

Greek does not always use an indefinite article the same way English does.

In English, we naturally say:

• gives a protocol number
• gives a reference number

In Greek, it is very common to omit the equivalent of a/an in this kind of sentence, especially in formal, administrative, or system-style language.

So:

• δίνει αριθμό πρωτοκόλλου

naturally means:

• gives a protocol number
• provides a reference number

You could sometimes add έναν (one/a) for emphasis, but it is not necessary here and would often sound less natural in this formal context.

Because αριθμό is in the accusative case, which is used here for the direct object of the verb.

The verb δίνει means gives, and the thing being given is the number. So number must be in the accusative.

Compare:

• ο αριθμός = the number (nominative, subject form)
• τον αριθμό = the number (accusative, object form)

In this sentence:

• Η ηλεκτρονική θυρίδα = subject
• δίνει = verb
• αριθμό πρωτοκόλλου = direct object

So the accusative αριθμό is exactly what you would expect after δίνει.

πρωτοκόλλου is the genitive singular form of πρωτόκολλο.

Here it depends on αριθμό and means:

• number of protocol
• more naturally in English: protocol number
• or in practical usage: reference number / registration number

This is a very common Greek structure:

• noun + genitive

where the second noun specifies the first.

So:

• αριθμός πρωτοκόλλου = protocol number
• literally: number of protocol

Forms of πρωτόκολλο:

• το πρωτόκολλο = nominative
• του πρωτοκόλλου = genitive

In the sentence, the article του is omitted because the whole phrase is being used in a more general, indefinite way.

Because Greek often leaves out the article in these compact noun phrases, especially in formal or bureaucratic language.

Compare the idea in English:

• a protocol number
• reference number
• account number

These are often treated as set expressions.

So:

• αριθμό πρωτοκόλλου sounds natural and concise

If you said αριθμό του πρωτοκόλλου, that would usually mean something more specific like:

• the number of the protocol/document

which is a different idea.

So here, the article is omitted because the phrase is functioning like a standard label or category:

• protocol number
• not the number of the protocol

The word order here is the most straightforward and neutral one:

• subject + verb + object

So:

• Η ηλεκτρονική θυρίδα = subject
• δίνει = verb
• αριθμό πρωτοκόλλου = object

Greek word order is more flexible than English because case endings help show what each word is doing. So other orders are possible for emphasis, but this version is the most neutral and natural in many contexts.

For example, this sentence is simply presenting information in a plain way:

• The electronic portal gives/issues a protocol number.

A simple pronunciation guide is:

ee ilek-tro-nee-KEE thee-REE-tha THEE-nee a-rith-MO pro-to-KO-llou

A slightly more precise pronunciation is approximately:

[i ilektroniˈci θiˈriða ˈðini ariðˈmo protokˈolu]

A few helpful points:

• η sounds like ee
• θ sounds like th in think
• δ sounds like th in this
• γγ / κ / χ are not relevant here, so this sentence is fairly beginner-friendly
• the stressed syllables are:
  • ηλεκτρονική
  • θυρίδα
  • δίνει
  • αριθμό
  • πρωτοκόλλου

It sounds fairly formal and administrative.

This kind of wording is very typical in:

• government websites
• online forms
• digital services
• official instructions

A Greek speaker would understand it easily, but it is not especially conversational. In everyday speech, someone might explain it more loosely, but in official contexts this compact style is very normal.

So the sentence feels like the kind of thing a portal or service description would say:

• The electronic portal issues a protocol number
• The system provides a reference number

Yes. Although δίνει literally means gives, in this context better English translations may be:

• provides
• issues
• generates
• assigns

That is common when Greek uses δίνω in administrative or technical language.

So depending on context, the sentence could be understood as:

• The electronic portal provides a protocol number
• The electronic portal issues a reference number
• The system generates a registration number

Even though the Greek verb is the ordinary verb to give, the practical meaning in English may be more specialized.