Polish · Time, Numbers & Colors
"Eighteen" in Polish: osiemnaście
osiemnaście
Eighteen in Polish is osiemnaście, the number 18. Its genitive form is osiemnastu. Osiemnaście takes genitive plural; osiemnastu appears in genitive and other cases.
A useful quantity
Mam osiemnaście lat.Speak with an AI partner · 7 days free
How to pronounce osiemnaście
Say it
osiemnashtsie
/ɔɕɛmˈnaɕtɕɛ/
In osiemnaście, ś/si has a soft sh-like sound; ć/ci has a soft ch-like sound. The content words in osiemnaście normally use penultimate stress when they have multiple syllables.
"Eighteen" in Polish: quick reference
| Polish | English | When to use |
|---|---|---|
| osiemnaście | 18 Counting or dictionary form. | Counting or dictionary form. |
| osiemnastu | 18 in a genitive construction Changes with the grammar of the sentence. | Changes with the grammar of the sentence. |
| Mam osiemnaście lat. | I am eighteen years old. A complete quantity in a sentence. | A complete quantity in a sentence. |
How to use osiemnaście in real life
- 1A useful quantity
Mam osiemnaście lat.
I am eighteen years old.
Osiemnaście takes genitive plural; osiemnastu appears in genitive and other cases.
- 2Time or another everyday count
Kurs obejmuje osiemnaście lekcji.
The course includes eighteen lessons.
This sentence keeps osiemnaście in the counting form and shows the noun used with it.
- 3A genitive construction
Nie mam osiemnastu biletów.
I do not have eighteen tickets.
Osiemnastu is the genitive form corresponding to osiemnaście.
Mistakes English speakers make with osiemnaście
Incorrect: Mam osiemnaście lata.
Correct: Mam osiemnaście lat.
The noun after osiemnaście must use the case and number shown in Mam osiemnaście lat.
Incorrect: Nie mam osiemnaście biletów.
Correct: Nie mam osiemnastu biletów.
This negative construction requires genitive osiemnastu, rather than counting form osiemnaście.
Good to know
Osiemnaście takes genitive plural; osiemnastu appears in genitive and other cases.
Read this practice conversation aloud
Practice a quantity of 18
Partner
Jak użyjesz tej liczby w zdaniu?
How will you use this number in a sentence?
You
Mam osiemnaście lat.
I am eighteen years old.
Partner
A w innym kontekście?
And in another context?
You
Kurs obejmuje osiemnaście lekcji.
The course includes eighteen lessons.
This is a sample dialogue for reading aloud. Try both parts, then replace a detail with one from your own life.
Explore ChatPal"Eighteen" in other languages
FAQ
Common questions about "Eighteen" in Polish
What number does osiemnaście express?
Osiemnaście is 18. For example: Mam osiemnaście lat. — I am eighteen years old.
What noun form follows osiemnaście?
Osiemnaście takes genitive plural; osiemnastu appears in genitive and other cases.
Does osiemnaście change in genitive constructions?
Yes. The form shown here is osiemnastu: Nie mam osiemnastu biletów. — I do not have eighteen tickets.
Can you give another example with osiemnaście?
Kurs obejmuje osiemnaście lekcji. — The course includes eighteen lessons.
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