Στο τέλος έβαλε μια σφραγίδα στο χαρτί και μου χαμογέλασε.

Στο τέλος means at the end or in the end, depending on context.

Literally, it is:

• σε = in / at / to
• το τέλος = the end

These combine into στο τέλος = at the end.

In this sentence, it most naturally means at the end of some process or event.

Because it is a very common contraction:

• σε + το = στο

So:

• στο τέλος = at the end
• στο χαρτί = on the paper / onto the paper

Greek does this regularly with σε plus the definite article:

• σε + τη(ν) → στη(ν)
• σε + το → στο
• σε + τους → στους

Greek often leaves out subject pronouns when they are not needed.

The verb ending already tells you it is he/she/it:

• έβαλε = he/she/it put
• χαμογέλασε = he/she/it smiled

So Greek normally does not need αυτός / αυτή unless the speaker wants emphasis or contrast.

They are in the aorist, which is a very common Greek past tense.

Here it presents each action as a single completed event:

• έβαλε = put
• χαμογέλασε = smiled

So the sentence describes two completed actions in sequence:

1. he/she put a stamp/seal on the paper
2. he/she smiled at me

Yes. Έβαλε is the aorist form of βάζω (to put).

This is one of those verbs where the past stem changes:

• present: βάζω
• aorist: έβαλα
• 3rd person singular aorist: έβαλε

So έβαλε means he/she put.

This is a very useful verb to learn because βάζω is extremely common in everyday Greek.

Here μια means a.

Greek uses the same word for:

• the indefinite article: a / an
• the number one

So μια σφραγίδα can literally be one stamp/seal, but in normal English translation here it is just a stamp/seal.

Because σφραγίδα is feminine singular, the form is μια.

Σφραγίδα can mean:

• a stamp
• a seal
• an official stamp mark

In this sentence, the exact translation depends on context:

• If someone is handling paperwork, it could be a stamp or an official seal.
• If it is a physical object used to mark the paper, it may also refer to the stamp itself.

So put a stamp/seal on the paper is a good general understanding.

Greek σε can cover several ideas that English separates into different prepositions.

So στο χαρτί can correspond to:

• on the paper
• onto the paper
• sometimes simply to the paper, depending on the verb

With έβαλε μια σφραγίδα στο χαρτί, the natural English meaning is put a stamp/seal on the paper.

So even though σε often gets taught as in / at / to, in real use it can also match English on in some contexts.

Because in Greek, χαμογελάω / χαμογελώ (to smile) takes the person smiled at as an indirect object, not a direct object.

So:

• μου χαμογέλασε = he/she smiled at me
• literally: smiled to me

That is why Greek uses μου (to me) rather than με (me as a direct object).

This is very natural Greek, and it is a pattern worth remembering:

• μου μίλησε = he/she spoke to me
• μου χαμογέλασε = he/she smiled at me

Μου is the weak genitive/clitic form meaning:

• to me
• my, in other contexts

Here it functions as an indirect object pronoun:

• μου χαμογέλασε = he/she smiled at me

So even though learners often first meet μου as my, it very often means to me with verbs.

Yes. Greek word order is more flexible than English because the endings and articles show grammatical relationships.

The given order is perfectly natural:

• Στο τέλος έβαλε μια σφραγίδα στο χαρτί και μου χαμογέλασε.

But other orders are also possible for emphasis, for example:

• Έβαλε στο τέλος μια σφραγίδα στο χαρτί και μου χαμογέλασε.
• Και μου χαμογέλασε στο τέλος, αφού έβαλε μια σφραγίδα στο χαρτί.

Not every variation sounds equally neutral, but Greek does allow movement much more than English does.

Yes, basically. Και means and.

Here it links the two actions:

• έβαλε μια σφραγίδα στο χαρτί
• μου χαμογέλασε

In English, depending on style, you might translate it as:

• and
• sometimes then in a smoother narrative translation

But the Greek word itself is simply και = and.

A rough pronunciation guide is:

Sto TE-los E-va-le MIA sfra-GHI-tha sto har-TI ke moo ha-mo-YE-la-se

A few helpful points:

• σφ in σφραγίδα sounds like sf
• γί before δ here sounds like a soft gh / y-like sound, depending on accent
• χ in χαρτί is like a throaty h / kh
• Stress matters:
  • τέλος
  • έβαλε
  • σφραγίδα
  • χαρτί
  • χαμογέλασε

It can mean both.

Χαρτί literally means paper, but in real usage it can also refer to:

• a sheet of paper
• a document
• official papers, depending on context

So in this sentence, στο χαρτί could mean:

• literally on the paper
• or more naturally on the document

Yes — several very useful patterns appear here:

1. σε + article contracts

   • στο τέλος, στο χαρτί

2. Greek often drops subject pronouns

   • έβαλε, χαμογέλασε already mean he/she

3. The aorist is used for completed past actions

   • put, smiled

4. Some verbs take an indirect object where English uses a preposition

   • μου χαμογέλασε = smiled at me

5. Vocabulary with broad meaning

   • σφραγίδα = stamp / seal
   • χαρτί = paper / document

So this is a short sentence, but it contains several very common Greek structures.