Preposition + Article: στον, στη, στο | Greek Grammar

στο is probably the first Greek word you ever met that is really two words. It is the preposition σε ("to, at, in, on") welded onto the definite article το, and the weld is not optional: in Modern Greek you cannot write the two apart. This page owns the whole contraction system — the accusative grid, the genitive forms στου / στης / στων that most courses never mention, and the sharp line between fusion (σε only) and mere elision (από, για, με).

Two neighbouring pages touch this from other angles and do not repeat what is here. Accusative after prepositions is about which case prepositions govern, and how cases show on the article is about the article grid itself. If you want the semantics of σε — when it means "to" and when "at" — that is σε: to, at, in, on.

The accusative grid

σε governs the accusative, so it is the accusative article it swallows. Six cells, and you will use every one of them daily.

	Masculine	Feminine	Neuter
Singular	σε + τον = στον	σε + την = στη(ν)	σε + το = στο
Plural	σε + τους = στους	σε + τις = στις	σε + τα = στα

The mechanics are trivial once you see them: drop the ε of σε, keep the τ- of the article, glue. σ + τον → στον. What is not trivial for an English speaker is that "to the / at the / in the / on the" — four different English phrases — all collapse into one Greek word, and that word is gendered. Before you can say "at the", you must already know the noun's gender and number.

Τα παιδιά είναι στο πάρκο με τη γιαγιά τους.

ta pedhiá íne sto párko me ti yayá tus

The kids are at the park with their grandmother.

Δουλεύω στον πρώτο όροφο, δίπλα στο ασανσέρ.

dhulévo ston próto órofo, dhípla sto asansér

I work on the first floor, next to the lift.

Έστειλα μήνυμα στους συναδέλφους μου και περιμένω απάντηση.

éstila mínima stus sinadhélfus mu ke periméno apándisi

I texted my colleagues and I'm waiting for a reply.

Θα σας δω στις οχτώ στην πλατεία.

tha sas dho stis ochtó stin platía

I'll see you at eight in the square.

That last sentence is worth a second look: στις οχτώ is a time ("at eight") and στην πλατεία is a place, and they use the same preposition. Greek does not split its spatial and temporal "at".

στη or στην? The final-ν rule travels with the fusion

The fused feminine form inherits the article's behaviour exactly. Write στην before a vowel and before the stops κ, π, τ, ξ, ψ and the clusters μπ, ντ, γκ, τσ, τζ; write στη before any other consonant.

στην (ν kept)	στη (ν dropped)
στην Αθήνα, στην Κύπρο, στην πόλη, στην τσάντα	στη δουλειά, στη θάλασσα, στη Μαρία, στη Ρόδο

The masculine στον behaves differently and the difference is not arbitrary: it keeps its ν always, because στον minus ν is στο — the neuter form. The feminine can afford to drop its ν since στη collides with nothing; the masculine cannot. The whole rule, with its phonetic rationale, is on the final-ν rule.

Μένουμε στη Λάρισα εδώ και τρία χρόνια.

ménume sti Lárisa edhó ke tría chrónia

We've been living in Larissa for three years.

Πήγαμε στην Κύπρο τον Αύγουστο και κάναμε μπάνιο κάθε μέρα.

píghame stin Kípro ton Ávghusto ke káname bánio káthe méra

We went to Cyprus in August and swam every day.

Έδωσα τα κλειδιά στον διαχειριστή της πολυκατοικίας.

édhosa ta klidhiá ston dhiachiristí tis polikatikías

I gave the keys to the building manager.

The genitive contractions: στου, στης, στων

Here is the part that most textbooks omit and that then confuses learners the moment they hear it. σε also fuses with the genitive article, giving στου, στης, στων. These forms are entirely real and thoroughly everyday.

σε +	Fused	Typical use
του	στου	στου Γιάννη — at Giannis's (place)
της	στης	στης Μαρίας — at Maria's (place)
των	στων	στων γονιών μου — at my parents' (place)

Why a genitive after σε at all? Because a noun has been left out. Πάω στου Γιάννη is Πάω στο σπίτι του Γιάννη with το σπίτι deleted — "I'm going to [the house] of Giannis". The genitive is left stranded and the preposition fuses with what remains. English does the identical thing with its own possessive: I'm going to Giannis's, at the baker's, at my parents'. So this construction, far from being exotic, is the one place where Greek and English are built the same way.

Απόψε τρώμε στου Γιάννη, μας κάλεσε για μακαρόνια.

apópse tróme stu Yáni, mas kálese ya makarónia

We're eating at Giannis's tonight — he's invited us for pasta.

Το βράδυ θα είμαι στης αδερφής μου, πάρε με εκεί.

to vrádhi tha íme stis adherfís mu, páre me ekí

I'll be at my sister's this evening — call me there.

Τα Χριστούγεννα τα περνάμε πάντα στων γονιών μου.

ta Christúyena ta pernáme pánda ston ghonión mu

We always spend Christmas at my parents'.

Two extensions of the same pattern are worth knowing. First, shops and trades: στου φούρναρη (at the baker's), στου μανάβη (at the greengrocer's). Second — and this catches every visitor to Athens — several neighbourhood names are frozen genitives of the family that once owned the land, so their normal address form is the fused genitive: στου Ζωγράφου, στου Γκύζη, στου Παπάγου.

Μένει στου Ζωγράφου, πέντε λεπτά από τη σχολή.

méni stu Zoghráfu, pénde leptá apó ti scholí

She lives in Zografou, five minutes from the faculty.

Of the three, στων is by some distance the rarest; outside "at someone's place" it mostly shows up with a fronted genitive possessor, which is itself a marked, emphatic order. στου and στης are completely ordinary.

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If you can paraphrase your English with an apostrophe-s and nothing after it — at Maria's, to the doctor's — the Greek is almost certainly στης Μαρίας, στου γιατρού. If you would say the full noun (to Maria's house), Greek says the full noun too: στο σπίτι της Μαρίας.

What σε does not fuse with

The fusion is a fact about σε plus the definite article, and nothing else. Three near-misses:

The indefinite article. σε does not fuse with ένας/μία/ένα; before a vowel it merely elides, losing its own ε and taking an apostrophe: σ' ένα, σ' έναν, σ' ένα. Both σε ένα and σ' ένα are correct; the clipped form is the norm in speech and increasingly in writing.

Βρεθήκαμε σ' ένα καφενείο στην παλιά πόλη.

vrethíkame s' éna kafenío stin paliá póli

We met up at a little café in the old town.

Strong pronouns. σε stays a separate word: σε μένα, σ' εμένα, σε σένα, σε αυτόν, σ' αυτούς, σε μας, σ' εμάς — all of these exist and all are correct. The forms with initial ε- (εμένα, εμάς) are slightly fuller and slightly more emphatic; the shorter ones are the everyday default. There is nothing to fuse here.

Σ' εμένα δεν είπε τίποτα, σ' εσένα;

s' eména dhen ípe típota, s' eséna;

He didn't say anything to me — did he to you?

Bare nouns. No article, no fusion: πάω σε γιατρό, μένω σε ξενοδοχείο.

The other prepositions only elide

από, για and με are often described as "contracting", which overstates it. What actually happens is elision: the preposition drops its own final vowel before another vowel and an apostrophe marks the gap. The article stays a separate word.

Preposition	Full form	Elided form	Status
από	από το σπίτι	απ' το σπίτι	optional; very common in speech
για	για αυτό	γι' αυτό	near-obligatory before αυτ-
με	με αυτόν	μ' αυτόν	optional; very common
σε	σε αυτό	σ' αυτό	optional; very common

The contrast with σε + article is absolute: απ' το can always be written back out as από το and nothing is lost, while ×σε το simply does not exist as Modern Greek. One is a stylistic clipping, the other is a fixed form of the language.

Κατέβηκα απ' το λεωφορείο μία στάση νωρίτερα.

katévika ap' to leoforío mía stási norítera

I got off the bus one stop early.

Γι' αυτό δεν σου τηλεφώνησα χθες, δεν είχα μπαταρία.

y' aftó dhen su tilefónisa chthes, dhen ícha bataría

That's why I didn't call you yesterday — my battery was dead.

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Where does the apostrophe go? On the word that lost the vowel. από loses its -ο, so the apostrophe closes it up: απ' το. Never ×απο' το and never ×απ 'το. The same logic gives σ', μ', γι'.

Where the fused forms come from

A short history makes the shape memorable. Ancient Greek had εἰς ("into") plus the article: εἰς τὸν οἶκον. Over centuries εἰς weakened to εις, then the phrase εις τον compressed to στον, and the leftover free-standing preposition was reanalysed as σε. So στον is not σε + τον assembled yesterday; it is the older, whole form, and σε is what fell out of it. That is precisely why the fusion feels obligatory rather than optional to a Greek ear — historically, the fused word came first.

You will still meet εις in fossilised phrases (εις υγείαν! — "cheers!", literally "to health") and in old documents; it is (archaic) everywhere else.

Στα ελληνικά αυτό λέγεται εντελώς διαφορετικά.

sta eliniká aftó léyete endelós dhiaforetiká

In Greek you say this completely differently.

Common Mistakes

1. Writing σε and the definite article as two words. The fusion is compulsory, not a colloquial shortcut.

❌ Θα πάμε σε την Αθήνα το Πάσχα.

Incorrect — σε + την must fuse: στην Αθήνα.

✅ Θα πάμε στην Αθήνα το Πάσχα.

tha páme stin Athína to Páscha

We're going to Athens at Easter.

2. Getting στη / στην wrong. The ν survives before a vowel and before κ, π, τ, ξ, ψ, μπ, ντ, γκ, τσ, τζ.

❌ Ο αδερφός μου σπουδάζει στη Πάτρα.

Incorrect — before π the ν stays: στην Πάτρα.

✅ Ο αδερφός μου σπουδάζει στην Πάτρα.

o adherfós mu spudházi stin Pátra

My brother studies in Patras.

3. Leaving the genitive article unfused. στου, στης and στων obey the same rule as στον and στο.

❌ Θα φάμε σε του Γιάννη το Σάββατο.

Incorrect — σε + του fuses: στου Γιάννη.

✅ Θα φάμε στου Γιάννη το Σάββατο.

tha fáme stu Yáni to Sávato

We're eating at Giannis's on Saturday.

4. Picking the wrong gender in the fused form. The fusion hides the article, but the gender is still in there.

❌ Πάμε στον παραλία να πιούμε κάτι.

Incorrect — παραλία is feminine: στην παραλία.

✅ Πάμε στην παραλία να πιούμε κάτι.

páme stin paralía na piúme káti

Let's go down to the beach for a drink.

5. Misplacing the apostrophe in elided forms. It marks the missing vowel, so it sits at the end of the shortened word.

❌ Μόλις γύρισα απο' το χωριό.

Incorrect — από loses its final vowel, so the apostrophe closes the word: απ' το χωριό.

✅ Μόλις γύρισα απ' το χωριό, είμαι πτώμα.

mólis yírisa ap' to chorió, íme ptóma

I've just got back from the village — I'm wrecked.

Key Takeaways

σε is the only preposition that truly fuses with the article, and the fusion is obligatory: στον, στη(ν), στο, στους, στις, στα.
The fused word is gendered, so "to/at/in/on the" forces you to know the noun's gender before you can say it.
The feminine follows the final-ν rule (στην before a vowel or κ π τ ξ ψ μπ ντ γκ τσ τζ, στη otherwise); στον always keeps its ν, or it would collapse into neuter στο.
σε also fuses with the genitive: στου Γιάννη, στης Μαρίας, στων γονιών μου — "at someone's place", with the noun σπίτι understood. στου and στης are everyday; στων is rarer.
σε does not fuse with the indefinite article (σ' ένα), with strong pronouns (σε μένα, σ' εμάς — both fine), or with a bare noun.
από, για, με only elide (απ' το, γι' αυτό, μ' αυτόν) — optional clippings whose full forms remain perfectly correct.

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