Greek Vowel Digraphs: Why Six Spellings Sound Like 'ee'
How Modern Greek vowel letters and pairs such as ει, οι, υ, αι and ου are pronounced, why spelling looks unphonetic, and how to read words confidently.
Modern Greek spelling preserves the look of Ancient Greek, while pronunciation has moved on. The result is a language where several different spellings share one sound. Once you learn the groupings, reading becomes predictable.
Five vowel sounds
Modern Greek has just five vowel sounds: a, e, i, o and u (as in "food"). But there are more vowel letters and pairs than that.
Six ways to write "ee"
The sound /i/ can be spelled:
- ι (ιδέα, idea)
- η (ήλιος, sun)
- υ (υπέροχος, wonderful)
- ει (είναι, is)
- οι (οικογένεια, family)
- υι (υιός, son; rare)
So ήλιος is "ILL-ee-os", είναι is "EE-neh", and οικογένεια starts with "ee". Which spelling a word uses is a matter of memory and etymology, which is why spelling errors between these letters are common even among native speakers.
Two ways to write "e"
- ε (ελιά, olive)
- αι (και, and; παιδί, child)
Και is pronounced "keh", and παιδί is "peh-DHEE".
Two ways to write "o"
- ο (όνομα, name; δρόμος, road)
- ω (ώρα, hour; πρώτος, first)
Both are simply "o", as in "more" without the glide.
One way to write "oo"
- ου (ουρανός, sky; ουζο)
The pair ου always sounds like English "oo" in "food".
Diphthongs αυ and ευ
The pairs αυ and ευ are pronounced av or af and ev or ef, depending on the next sound:
- Before a voiced sound (vowels, β, γ, δ, ζ, λ, μ, ν, ρ), they're av/ev: αύριο ("AH-vree-o", tomorrow), ευρώ ("ev-RO", euro).
- Before a voiceless sound (κ, π, τ, ξ, σ, φ, χ, ψ, θ), they're af/ef: αυτός ("af-TOS", he), ευχαριστώ ("ef-hah-ree-STO", thank you).
The diaeresis
Two dots over ϊ or ϋ mean the two vowels are pronounced separately: παϊδάκια ("pa-ee-DHAH-kya"), not παι as "eh".
Practice words
- καλημέρα — kah-lee-MEH-rah (good morning)
- παιδιά — peh-DHYAH (children)
- ευχαριστώ — ef-hah-ree-STO (thank you)
- ουρανός — oo-rah-NOS (sky)
- οικογένεια — ee-koh-YEH-nee-ah (family)
- κείμενο — KEE-meh-no (text)
Spelling tips
- Learn words in their written form, not from transliteration.
- Notice endings: verb endings often use -ει (γράφει), and plural nouns often -οι (οι φίλοι).
- Use a dictionary to check spelling when you hear a word.
- Read aloud to link letters and sounds.
Why it matters
Because the ee sound has so many spellings, words that sound identical can differ in writing, and context usually resolves any ambiguity. A dictionary in proper Greek script shows you the exact spelling of each word.
Look up Greek words in proper script with English Greek Dictionary →
English Greek Dictionary
Offline English–Greek dictionary with meanings in proper Greek script
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