Which may refer to:
* a
relative pronoun
* an
English interrogative word
*
which (command), an operating system command
*
Which?, a UK charity and its magazine
See also
*
English relative clauses
Relative clauses in the English language are formed principally by means of English relative words, relative words. The basic relative pronouns are ''who (pronoun), who'', ''which'', and ''that''; ''who'' also has the derived forms ''whom'' and ''w ...
*
Interrogative clause
*
Whicher (disambiguation)
*
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