If you had to learn the gender of every Czech noun by brute memorisation, the language would be far harder than it is. Fortunately, the nominative-singular ending — the dictionary form of the word — is a strong predictor of gender. Most of the time the shape of the word tells you whether it is masculine, feminine, or neuter, and a handful of clean rules of thumb will get you the right answer the great majority of the time.
The key word is most. These are strong hints, not guarantees. Czech has a small but well-known set of nouns that look like one gender and behave as another, and those exceptions cluster in predictable places. The smart strategy is to use the endings as your default guess, learn the famous exceptions deliberately, and — as always — store every new noun together with its ten / ta / to so the gender travels with the word.
The four rules of thumb
Here are the patterns, from most reliable to most mixed.
| Ending | Usual gender | Examples |
|---|---|---|
| final consonant | masculine | dům, stůl, muž, počítač, hrad |
| final -a | feminine | žena, kniha, voda, škola |
| final -o | neuter | město, auto, okno, slovo |
| final -í / -ě | neuter | stavení, nádraží, kuře, moře (mixed) |
| final -e | mixed! | růže (f), soudce (m), moře (n) |
Let us walk through each, with the warnings attached.
Consonant ending → usually masculine
A noun that ends in a consonant in its dictionary form is most likely masculine. This is by far the largest and most reliable class.
Ten dům na rohu se prodává.
That house on the corner is for sale. (dům — masculine)
Můj počítač je zase pomalý.
My computer is slow again. (počítač — masculine)
But this is also the rule with the most dangerous exception, so it gets its own section below: a sizeable group of feminine nouns also end in a consonant.
-a → usually feminine, except male persons
A noun ending in -a is almost always feminine — this is the žena class you meet first. Žena, kniha, voda, škola, hlava are all feminine.
Voda je dnes ledová, nepůjdu do ní.
The water is freezing today, I'm not getting in. (voda — feminine)
The crucial exception: a small set of nouns ending in -a that name male persons are masculine, because they refer to men. The everyday ones are předseda (chairman), táta (dad), kolega (colleague, male), turista (tourist), and starosta (mayor). They follow their own masculine animate pattern, but in agreement and pronoun reference they are fully masculine.
Náš předseda je velmi mladý.
Our chairman is very young. (předseda — masculine despite the -a; note 'náš', not 'naše')
Táta přišel domů unavený.
Dad came home tired. (táta — masculine; 'unavený', not 'unavená')
-o, -í, -ě → usually neuter
Nouns ending in -o are reliably neuter: město (city), auto (car), okno (window), slovo (word), pivo (beer). Nouns ending in -í are also neuter and tend to be abstract or "place-of" nouns: stavení (building), nádraží (station), náměstí (square), umění (art). Many young-animal nouns in -ě / -e are neuter too: kuře (chick), dítě (child), štěně (puppy).
To auto je úplně nové.
That car is brand new. (auto — neuter: 'to', 'nové')
Naše nádraží zavřeli kvůli rekonstrukci.
They closed our station for renovation. (nádraží — neuter: 'naše')
-e is genuinely mixed
The ending -e is the one shape that gives you no reliable default — all three genders live here. Růže (rose) is feminine, soudce (judge) is masculine, moře (sea) is neuter. You simply have to learn the gender of -e nouns individually.
Ta růže krásně voní.
That rose smells lovely. (růže — feminine)
Ten soudce rozhodl rychle.
That judge decided quickly. (soudce — masculine)
To moře bylo úplně klidné.
The sea was completely calm. (moře — neuter)
The big trap: consonant-final feminines
This is the exception that catches every learner. A meaningful group of nouns end in a consonant — which screams "masculine" by the rule above — but are in fact feminine. The most common ones to learn early are kost (bone), věc (thing), místnost (room), sůl (salt), noc (night), řeč (speech/language), and the entire huge family of abstract nouns ending in -ost like radost (joy), moudrost (wisdom), and starost (worry).
These follow the kost paradigm, not a masculine one, so getting the gender wrong cascades into wrong endings and wrong agreement.
Ta kost je pro psa.
That bone is for the dog. (kost — feminine despite the consonant ending: 'ta', not 'ten')
To je důležitá věc, nezapomeň na ni.
That's an important thing, don't forget about it. (věc — feminine: 'důležitá', 'ni')
Celou noc pršelo.
It rained all night. (noc — feminine: 'celou', accusative of celá)
Common mistakes
❌ ten kost
Incorrect — kost ends in a consonant but is feminine, so it takes 'ta'.
✅ ta kost
the/that bone
❌ Náš kolega přišla pozdě.
Incorrect — kolega ends in -a but names a man, so it is masculine: 'náš ... přišel'.
✅ Náš kolega přišel pozdě.
Our colleague came late.
❌ To je velký místnost.
Incorrect — místnost (-ost) is feminine; the adjective and demonstrative must be feminine.
✅ To je velká místnost.
That's a big room.
❌ Ta moře je studené.
Incorrect — moře is neuter, not feminine; it takes 'to', though the adjective 'studené' is already right.
✅ To moře je studené.
That sea is cold.
The pattern behind every one of these is the same: an ending that usually points one way, used on a noun that goes the other. The fix is never to over-trust the ending where you know exceptions live — male-person nouns in -a, and feminine nouns in a consonant (especially -ost).
Key takeaways
- Consonant → usually masculine (dům, muž), but watch for consonant-final feminines (kost, věc, místnost, and all -ost nouns).
- -a → usually feminine (žena, kniha), except male-person nouns, which are masculine (předseda, táta, kolega).
- -o, -í, -ě → usually neuter (město, nádraží, kuře).
- -e is genuinely mixed across all three genders (růže f, soudce m, moře n) — learn it case by case.
- The ending is a strong hint, never a law. Keep storing nouns as ten / ta / to + noun, and study the male-person and consonant-feminine groups deliberately. For the masculine animate/inanimate split, see masculine animacy.
Now practice Czech
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Start learning Czech→Related Topics
- The Three Genders of Czech NounsA1 — Every Czech noun is masculine, feminine, or neuter — a grammatical property that drives its declension and forces agreement on everything around it.
- Masculine Animacy: Životná vs NeživotnáA2 — Why Czech masculine nouns split into animate (living) and inanimate, and how that split changes the accusative singular, the nominative plural, and all the agreement around them.
- Feminine: The Žena ParadigmA1 — The hard feminine pattern žena (woman) — the model for the huge class of feminine nouns ending in -a, with its full seven-case table for both numbers.
- Feminine: The Kost Paradigm (i-stems)B1 — Consonant-final feminines of the kost type that take -i endings, and the words that belong here.
- Masculine Animate in -a: The Předseda ParadigmB1 — Male-person nouns ending in -a that are masculine but decline with feminine-looking singular endings.