1. 
2. 
[syn: withholding tax, withholding]
3.  the act of holding back or keeping within your possession or control; 
- Example: "I resented his withholding permission"
- Example: "there were allegations of the withholding of evidence"
The Collaborative International Dictionary of English v.0.48:
Withhold \With*hold"\, v. t. [imp. Withheld; p. p. Withheld,
   Obs. or Archaic Withholden; p. pr. & vb. n. Withholding.]
   [With again, against, back + hold.]
   [1913 Webster]
   1. To hold back; to restrain; to keep from action.
      [1913 Webster]
            Withhold, O sovereign prince, your hasty hand
            From knitting league with him.        --Spenser.
      [1913 Webster]
   2. To retain; to keep back; not to grant; as, to withhold
      assent to a proposition.
      [1913 Webster]
            Forbid who will, none shall from me withhold
            Longer thy offered good.              --Milton.
      [1913 Webster]
   3. To keep; to maintain; to retain. [Obs.]
      [1913 Webster]
            To withhold it the more easily in heart. --Chaucer.
      [1913 Webster]
WordNet (r) 3.0 (2006):
withholding
    n 1: the act of deducting from an employee's salary
    2: income tax withheld from employees' wages and paid directly
       to the government by the employer [syn: withholding tax,
       withholding]
    3: the act of holding back or keeping within your possession or
       control; "I resented his withholding permission"; "there were
       allegations of the withholding of evidence"