which's pronoun 2contraction 1 pronoun2 •Of or pertaining to [some noun phrase ending with] which.The yield is comparable to the best corporate securities, each of which’s principal is relatively safe. — 1992 •(informal, nonstandard) Of which; alternative to inanimate sense of “whose”.Do you happen to know if - gosh, I've forgotten his name - from the zoo film unit is still operating at that little film studio which's name I've also forgot? — 2001 contraction1 •(nonstandard) contraction of which isI didn’t ask for installation but they still charge me the installation which’s fine for me.
