No. 1,791 in Russian
каких
A form of "какой," meaning "which" or "what kind of" in plural and genitive/accusative cases.
In a sentence
Каких книг вы читали в детстве?
What books did you read in childhood?
The word 'каких' is a declined form of 'какой' that corresponds to 'which' or 'what kind of' in English, and it's used here as an interrogative word referring to plural nouns in the genitive case.
Я не знаю, каких людей ты встречал.
I don't know what kind of people you have met.
The word 'каких' functions here as a relative pronoun introducing a subordinate clause, specifying the kind of people and appearing in the genitive case to match the noun.
Это мероприятие для тех, каких ты никогда не забудешь.
This event is for those whom you will never forget.
In this sentence, 'каких' acts as a relative pronoun referring back to a plural antecedent in the genitive case, emphasizing the notable characteristics of the persons remembered.
Hear it in real podcasts
The recording above is a synthetic voice. Hear how people say “каких” in actual Russian podcasts.
Find “каких” in podcastsLearn it from shows you like
LangTurbo plays Russian podcasts with a transcript and the English under every line. Tap a word like this one and it tells you what it means right there. For iPhone, iPad and Android.
Learning English?
LangTurbo plays real English podcasts with every line translated into русский, and tells you what any word means in that sentence. For iPhone, iPad and Android.
Russian books and courses on Amazon (an affiliate link: a purchase through it supports this site).