DICT.TW Dictionary Taiwan

 where·to /-ˌtu/
 (ad.)何以,向何處,為什?

 Where·to adv.
 1. To which; -- used relatively.  “Whereto we have already attained.”
    Whereto all bonds do tie me day by day.   --Shak.
 2. To what; to what end; -- used interrogatively.
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 whereto
      adv 1: to or unto which [syn: whereunto]
      2: to which; "the species whereto this name might be better
         applied"
      3: to what place, purpose, or end