资料来源 : Webster's Revised Unabridged Dictionary (1913)

Income \In"come\, n.
   1. A coming in; entrance; admittance; ingress; infusion.
      [Obs.] --Shak.

            More abundant incomes of light and strength from
            God.                                  --Bp. Rust.

            At mine income I louted low.          --Drant.

   2. That which is caused to enter; inspiration; influence;
      hence, courage or zeal imparted. [R.]

            I would then make in and steep My income in their
            blood.                                --Chapman.

   3. That gain which proceeds from labor, business, property,
      or capital of any kind, as the produce of a farm, the rent
      of houses, the proceeds of professional business, the
      profits of commerce or of occupation, or the interest of
      money or stock in funds, etc.; revenue; receipts; salary;
      especially, the annual receipts of a private person, or a
      corporation, from property; as, a large income.

            No fields afford So large an income to the village
            lord.                                 --Dryden.

   4. (Physiol.) That which is taken into the body as food; the
      ingesta; -- sometimes restricted to the nutritive, or
      digestible, portion of the food. See {Food}. Opposed to
      {output}.

   {Income bond}, a bond issued on the income of the corporation
      or company issuing it, and the interest of which is to be
      paid from the earnings of the company before any dividends
      are made to stockholders; -- issued chiefly or exclusively
      by railroad companies.

   {Income tax}, a tax upon a person's incomes, emoluments,
      profits, etc., or upon the excess beyond a certain amount.

   Syn: Gain; profit; proceeds; salary; revenue; receipts;
        interest; emolument; produce.

资料来源 : WordNet®

income tax
     n : a personal tax levied on annual income