which
determiner//wɪt͡ʃ//vilken, vilket, vilka, som
(interrogative) What, of those mentioned or implied.
(relative, formal, _, outside certain phrases) Designates the one(s) previously mentioned.
(interrogative) What one or ones (of those mentioned or implied).
(mostly, archaic) Used of people (now generally who, whom, that; which remains possible with words also referred to by it such as baby, child).