Noun gender and number
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In short
Every Polish noun has a gender (masculine, feminine or neuter) and a number (singular or plural). Unlike English, Polish shows number by changing the ending of the noun itself, not by adding a fixed -s. The plural ending you pick depends on the noun’s gender and on the final consonant of its stem, so gender and number are best learned together.
The rule
In the singular, Polish has three genders, and you can usually guess the gender from the ending of the nominative (dictionary) form:
- Masculine (rodzaj męski): ends in a consonant - dom (house), kot (cat), student (student), pan (gentleman).
- Feminine (rodzaj żeński): ends in -a - kobieta (woman), książka (book), ulica (street). A few end in -i (pani - lady) or in a soft consonant (noc - night, miłość - love).
- Neuter (rodzaj nijaki): ends in -o, -e, -ę (nasal) or -um - okno (window), morze (sea), imię (name), muzeum (museum).
How the plural is built
To make the nominative plural you drop the singular ending (if any) and add a new one. Which ending you add is decided by two things: the gender of the noun and the last consonant of the stem (hard vs. soft vs. velar k, g).
- Feminine and hard-masculine nouns usually take -y: kot -> koty (cats), kobieta -> kobiety (women).
- Stems ending in k or g take -i instead of -y (spelling rule: y never follows k, g): książka -> książki (books), ptak -> ptaki (birds).
- Soft-stem nouns (and many feminines) take -e: ulica -> ulice (streets), pokój -> pokoje (rooms) - but the feminine -ość class takes -i: wartość -> wartości (values), możliwość -> możliwości (possibilities). Otherwise, with a feminine consonant stem the ending is learned with the word.
- Neuter nouns take -a: okno -> okna (windows), morze -> morza (seas).
The special masculine-personal plural
Nouns naming male people (the masculine personal / virile group) get their own set of plural endings, often with a softening of the final consonant: student -> studenci (students), Polak -> Polacy (Poles), pan -> panowie (gentlemen). All other nouns - things, animals, and all feminine and neuter nouns - use the plain endings above. This split runs through the whole grammar and is covered fully later in Virile/non-virile gender in the plural; for now just notice that men behave differently from everything else.
Stem changes
Adding a plural ending often triggers a vowel or consonant alternation in the stem. The most common is ó -> o (the o-kreskowane becomes a plain o): stół -> stoły (tables), samochód -> samochody (cars). A dropped -e- (a “mobile e”) can also reappear or vanish: chłopiec -> chłopcy (boys). These alternations are systematic - see Sound alternations.
Forms & patterns
Nominative plural endings by gender and stem:
| Gender / group | Singular | Plural ending | Example (sing. -> plur.) |
|---|---|---|---|
| masculine, hard stem (thing/animal) | consonant | -y | kot -> koty (cat) |
| masculine, stem in k/g | consonant | -i | ptak -> ptaki (bird) |
| masculine, soft stem | consonant | -e | pokój -> pokoje (room) |
| masculine personal (male people) | consonant | -i / -y / -owie | student -> studenci (student) |
| feminine, hard stem | -a | -y | kobieta -> kobiety (woman) |
| feminine, stem in k/g | -a | -i | książka -> książki (book) |
| feminine, soft stem | -a / cons. | -e | ulica -> ulice (street) |
| feminine in -ość | -ość | -i | wartość -> wartości (value) |
| neuter | -o / -e / -ę / -um | -a | okno -> okna (window) |
Regular examples across the genders:
| Singular | Plural | English |
|---|---|---|
| dom | domy | house / houses |
| stół | stoły | table / tables |
| samochód | samochody | car / cars |
| matka | matki | mother / mothers |
| gazeta | gazety | newspaper / newspapers |
| noc | noce | night / nights |
| mieszkanie | mieszkania | flat / flats |
| dziecko | dzieci | child / children (irregular) |
Masculine-personal plurals (male people):
| Singular | Plural | English |
|---|---|---|
| student | studenci | student / students |
| Polak | Polacy | Pole / Poles |
| chłopiec | chłopcy | boy / boys |
| pan | panowie | gentleman / gentlemen |
| syn | synowie | son / sons |
| nauczyciel | nauczyciele | teacher / teachers |
Examples
| Polski | English |
|---|---|
| To jest kot, a tam są dwa koty. | This is a cat, and there are two cats over there. |
| Mam nową książkę; twoje książki są na stole. | I have a new book; your books are on the table. |
| Kobieta czyta, a kobiety obok rozmawiają. | A woman is reading, and the women next to her are talking. |
| Okno jest otwarte, ale inne okna są zamknięte. | The window is open, but the other windows are closed. |
| Nasi studenci uczą się polskiego. | Our students are learning Polish. |
| Te domy są bardzo stare. | These houses are very old. |
| Dzieci bawią się w parku. | The children are playing in the park. |
| Na ulicy stoją samochody. | Cars are standing on the street. |
Common mistakes
- dwa kots -> dwa koty - Polish never adds -s; the plural is an ending change (hard masculine takes -y).
- książky -> książki - after k and g you must write -i, never -y.
- studenty (about men) -> studenci - male-person nouns use the masculine-personal plural, not the plain -y.
- oknos / okny -> okna - neuter nouns form the plural in -a.
- stóły (keeping the ó of the singular) -> stem vowel shifts: stół -> stoły - the ó becomes a plain o once the plural ending is added.
- dziecka -> dzieci - dziecko has an irregular plural; memorise it as a fixed pair.
Tips
- Learn each noun with its plural, the way you would learn an irregular English pair - the ending is rarely predictable from meaning alone.
- Remember the spelling rule “no y after k or g”: that alone turns matka into matki and ptak into ptaki.
- Ask yourself “is it a male person?” first - if yes, expect a special plural (-i/-y/-owie); if no, use the plain endings.
- Neuter is the easy one: singular -o/-e almost always becomes plural -a.
- Watch for the wandering ó -> o and mobile -e-: they appear precisely when the ending is added or dropped.