Stil — stoli: how o and e turn into i

Here is the shifty vowel of Ukrainian: when a syllable slams shut on a consonant, o and e turn into i. Open the syllable again, and the old vowel walks back in. For example: “Стіл стоїть, на столі лампа” — The table stands, the lamp is on the table. A rule from the Ukrainian course: worked out on examples, not memorized as a wording.

Updated September 1, 2026 · Lingofly

How it works

Here is the shifty vowel of Ukrainian: when a syllable slams shut on a consonant, o and e turn into i. Open the syllable again, and the old vowel walks back in.

stil, but na stoli. vikno, but vikon. nis, but nosa. osin, but voseny. dohovir, but dohovoru. sim, but semy.

English does the same trick in sound only: man turns into men, a long vowel shortens between life and live. Ukrainian writes the switch down with a letter. One rule explains dozens of words at once. Poverkh, obid, zhyvit, viter, snih, zirka, vilnyi, shist — all of them live here.

So when a strange middle i shows up, mentally swap in o or e and look again. Sil salt, kit cat, pich stove.

Table

Stil — stoli: how o and e turn into i
with iwith o or emeaning
stilstolitable
nisnosanose
vechirvechoraevening
dohovirdohovoruagreement

By example

  • Стіл стоїть, на столі лампа
    The table stands, the lamp is on the table
  • Вікно велике, а вікон багато
    The window is big, but there are many windows
  • Осінь прийшла, восени холодно
    Autumn came, and in autumn it is cold

How the rule settles in your head

A rule is not memorized from an explanation. It is memorized from an attempt to use it and a mistake — that is why the app delivers it mixed in with words, not as a separate lesson: it resurfaces exactly where you forgot it.

Frequently asked

Why does stil turn into stoli in Ukrainian?

Here is the shifty vowel of Ukrainian: when a syllable slams shut on a consonant, o and e turn into i. Open the syllable again, and the old vowel walks back in.

What does it look like in an example sentence Ukrainian?

“Стіл стоїть, на столі лампа” — The table stands, the lamp is on the table. A rule is easier to test on sentences like this than to memorize as a wording: what surfaces in conversation is the sentence.

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Test the rule on examplesPractice