Scrabble?! WHICH

Definitions of WHICH in various dictionaries:

Used as a relative pro noun in a clause that provides additional information about the antecedent: my house, which is small and old.

Used as a relative pro noun preceded by that or a preposition in a clause that defines or restricts the antecedent: that which he needed; the subject on which she spoke.

Used instead of that as a relative pro noun in a clause that defines or restricts the antecedent: The movie which was shown later was better.

Any of the things, events, or people designated or implied; whichever: Choose which you like best.

A thing or circumstance that: He left early, which was wise.

Any one or any number of; whichever: Use which door you please.

The antecedent of which can sometimes be a sentence or clause, as opposed to a noun phrase, as in She ignored him, which proved to be unwise.

pron - what particular one or ones