Czech · Numbers & Time
one
The cardinal number 1.
Mám jednu sestru.
I have one sister.
'Jedna' is the feminine form of 'one' in Czech, with roots in Proto-Slavic languages and is indicative of the numeral system's development in the language.
'Jedna' is used formally and informally in various contexts, such as counting, indicating age, or as a quantity in both spoken and written language.