The synonyms for the word "which" depend on its usage in a sentence:
- As a relative pronoun, synonyms include that and whatever.
- As an interrogative pronoun, common synonyms are what.
- Other alternatives in different contexts can be whichever , who (for persons), and whom (object form for persons).
- In adjectival use, synonyms like that , whatever , and whichever can also apply.
These synonyms vary based on the specific grammatical role "which" plays in a sentence, whether it is specifying, questioning, or referring to something already mentioned.