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Now that you know all 24 individual letters, it is time to learn how certain letter combinations create sounds that differ from the individual letters. These combinations are essential for reading real Greek text.
| Term | Definition |
|---|---|
| Digraph | Two letters that together represent a single sound |
| Diphthong | Two vowels that together represent a single vowel sound |
In Ancient Greek, diphthongs were true gliding vowel sounds (like "oi" in English "oil"). In Modern Greek, most have simplified to single vowel sounds.
These vowel combinations produce a single sound in Modern Greek:
| Digraph | Sound | Example | Meaning |
|---|---|---|---|
| αι | "e" as in "bed" | και (ke) | and |
| ει | "ee" as in "see" | είναι (eeneh) | is / are |
| οι | "ee" as in "see" | οίκος (eekos) | house |
| ου | "oo" as in "food" | ουρανός (ooranos) | sky |
| υι | "ee" as in "see" | υιός (eeos) | son |
Key pattern:
αι = "e" (like ε)
ει = "ee" (like η, ι)
οι = "ee" (like η, ι)
ου = "oo" (the ONLY way to get an "oo" sound)
υι = "ee" (rare)
Tip: The digraph ου is extremely important — it is the only way to write the "oo" sound in Greek. There is no single letter for this sound.
These consonant combinations produce sounds that do not exist as individual letters:
| Digraph | Sound | Example | Meaning |
|---|---|---|---|
| μπ | "b" as in "bat" | μπάλα (bala) | ball |
| ντ | "d" as in "dog" | ντομάτα (domata) | tomato |
| γκ / γγ | "g" as in "go" | γκολ (gol) | goal |
| τσ | "ts" as in "cats" | τσάι (tsai) | tea |
| τζ | "dz" as in "adze" | τζάκι (dzaki) | fireplace |
Why does Greek need consonant digraphs?
Ancient Greek had b, d, and g sounds as single letters (β, δ, γ).
But in Modern Greek:
β → "v" so μπ is needed for "b"
δ → "th" so ντ is needed for "d"
γ → "gh" so γκ is needed for "g"
Cultural Note: Many loanwords from English, French, and Italian use these consonant digraphs. The word μπύρα (beera — "beer") uses μπ for the "b" sound.
When γ appears before another γ, or before κ, it produces a nasal "ng" sound followed by "g":
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