which

/wษชtอกสƒ/

IPA: /W IH1 CH/

pronoun
  1. 1

    (interrogative) What one or ones (of those mentioned or implied).

    โ€œBy now, you must surely know which is which.โ€

  2. 2

    The/Any ones that; whichever.

    โ€œPlease take which you please.โ€

  3. 3

    (relative) Introduces a relative clause giving further information about something previously mentioned.

    โ€œHe had to leave, which was very difficult.โ€

  4. 4

    (relative) Used of people (now generally who, whom or that).

Source: https://en.wiktionary.org/wiki/which