Source : Webster's Revised Unabridged Dictionary (1913)

Taxable \Tax"a*ble\, a.
   1. Capable of being taxed; liable by law to the assessment of
      taxes; as, taxable estate; taxable commodities.

   2. (Law) That may be legally charged by a court against the
      plaintiff of defendant in a suit; as, taxable costs. --
      {Tax"a*ble*ness}, n. -- {Tax"a*bly}, adv.

Source : WordNet®

taxable
     adj : (of goods or funds) subject to taxation; "taxable income";
           "nonexempt property" [syn: {nonexempt}] [ant: {nontaxable}]