whichever

Short definition from Wiktionary

Determiner

1. 1
   Which ever; emphatic form of 'which'.
2. 2
   Regardless of the ... that; no matter which.
3. 3
   Any or either ... that; the ... that.
4. 4
   According to or depending upon which.

Pronoun

1. 1
   Which ever; emphatic form of 'which'.
2. 2
   Irrespective of the one(s) that; no matter which one(s).
3. 3
   Any or either one(s) that; the one(s) that.
4. 4
   Any or either one(s).
5. 5
   According to or depending upon which one(s).