Ο προμηθευτής έστειλε τον λογαριασμό.

Greek articles change form depending on the gender, number, and especially the case of the noun.

In this sentence:

• ο προμηθευτής = the supplier → subject of the sentence, so it is in the nominative
• τον λογαριασμό = the bill/invoice/account → direct object, so it is in the accusative

So:

• ο = masculine singular nominative the
• τον = masculine singular accusative the

This is one of the first big differences from English, where the never changes form.

The forms of the article and noun tell you.

• ο προμηθευτής is nominative, so it is the subject
• τον λογαριασμό is accusative, so it is the direct object

So the sentence structure is:

• Ο προμηθευτής = the supplier
• έστειλε = sent
• τον λογαριασμό = the bill/invoice

Even if the word order changed, the case endings would still help you identify who did the action and what received the action.

έστειλε is the aorist form of the verb στέλνω (to send).

Here it means:

• he sent
• she sent
• it sent

The Greek aorist usually expresses a completed action in the past. So this sentence presents the sending as a single finished event.

That έ- is called the augment, which often appears in past tense forms in Greek, especially in the aorist and imperfect.

So from στέλνω you get the aorist έστειλα / έστειλε / έστειλαν, etc.

For learners, the main practical point is:

• present: στέλνει = he/she sends
• aorist: έστειλε = he/she sent

The extra ε- helps mark it as past.

Because it is the direct object, so it must be in the accusative singular.

The dictionary form is:

• ο λογαριασμός = the bill/account/invoice

In the accusative singular it becomes:

• τον λογαριασμό

This is a very common masculine noun pattern:

• nominative: -ος
• accusative: -ο

So:

• ο λογαριασμός
• τον λογαριασμό

προμηθευτής usually means supplier or vendor.

Depending on context, it can refer to:

• a business supplier
• a company providing goods or services
• sometimes a vendor in a commercial setting

So in this sentence, the meaning is probably something like the supplier sent the invoice or the supplier sent the bill.

It can mean several related things, depending on context.

Common meanings include:

• bill
• invoice
• account
• sometimes even bank account in other contexts

In a sentence with supplier, the most natural interpretation is often:

• invoice
• or bill

So context matters a lot with this word.

Greek often drops subject pronouns when they are not needed.

The verb form έστειλε already tells you it is third person singular, so Greek does not need to say:

• αυτός έστειλε = he sent
• αυτή έστειλε = she sent

In most normal sentences, the pronoun is omitted unless you want emphasis or contrast.

So Ο προμηθευτής έστειλε τον λογαριασμό is perfectly natural without any separate word for he.

Yes. Greek word order is more flexible than English because the case forms show grammatical function.

This sentence is in a very straightforward order:

• subject + verb + object

But you could also see variations such as:

• Τον λογαριασμό έστειλε ο προμηθευτής.
• Έστειλε τον λογαριασμό ο προμηθευτής.

These still mean roughly the same thing, though the focus or emphasis may change.

English depends much more heavily on word order; Greek can rely more on case endings.

A rough pronunciation is:

• o pro-mi-thef-TIS

More specifically:

• ο sounds like o
• προ = pro
• μη = mi
• θευ sounds like thef
• τής has the stress: TIS

So the stress falls on the last syllable of προμηθευτής.

A rough pronunciation is:

o pro-mi-thef-TIS E-stee-le ton lo-ga-ria-SMO

A few helpful points:

• έστειλε is stressed on the first syllable: E-stee-le
• λογαριασμό is stressed on the last syllable: lo-ga-ria-SMO
• τον before λ is normally pronounced very smoothly, almost like to(n) logariasmó

If you are learning pronunciation, pay close attention to the written accent marks, because they show where the stress goes.

In everyday pronunciation, the final -ν in words like τον may be pronounced more weakly depending on the sound that follows. However, before certain consonants, including λ, it is generally kept.

So in τον λογαριασμό, speakers normally do pronounce the ν, though in fast speech it may sound lighter than an English learner expects.

For reading and writing, you should definitely keep τον here.

It can mean both.

Greek verbs in the third person singular do not distinguish male and female in the verb form itself.

So έστειλε can mean:

• he sent
• she sent
• it sent

In this sentence, the noun ο προμηθευτής is masculine, so the subject is male grammatical gender. In practice, that gives you the supplier sent.

The dictionary form is στέλνω, meaning to send.

Some useful forms are:

• στέλνω = I send / I am sending
• στέλνει = he/she sends
• έστειλε = he/she sent

So έστειλε is not just a simple ending added to στέλνω; it comes from the verb’s aorist stem, which is why it looks different.

It is neutral and completely normal in standard Greek.

The vocabulary sounds especially natural in:

• business Greek
• billing and payments
• office or supplier/customer communication

So it would fit very well in contexts like invoices, email messages, and administrative language.