NOUN (2)

1. a native or resident of the city of Washington;

2. a native or resident of the state of Washington;


ADJECTIVE (4)

1. of or relating to or in the manner of George Washington;

2. of or relating to the people who run the federal government;
- Example: "Washingtonian politics as usual"

3. of or relating to the capital of the United States;
- Example: "Washingtonian museums"

4. of or relating to or in the state of Washington;

The Collaborative International Dictionary of English v.0.48:

Washingtonian \Wash`ing*to"ni*an\, a.
   1. Pertaining to, or characteristic of, George Washington;
      as, a Washingtonian policy. --Lowell.
      [1913 Webster]

   2. Designating, or pertaining to, a temperance society and
      movement started in Baltimore in 1840 on the principle of
      total abstinence. -- n. A member of the Washingtonian
      Society.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Washingtonian
    adj 1: of or relating to or in the manner of George Washington
    2: of or relating to the people who run the federal government;
       "Washingtonian politics as usual"
    3: of or relating to the capital of the United States;
       "Washingtonian museums"
    4: of or relating to or in the state of Washington
    n 1: a native or resident of the city of Washington
    2: a native or resident of the state of Washington

The Devil's Dictionary (1881-1906):

WASHINGTONIAN, n.  A Potomac tribesman who exchanged the privilege of
governing himself for the advantage of good government.  In justice to
him it should be said that he did not want to.

    They took away his vote and gave instead
    The right, when he had earned, to _eat_ his bread.
    In vain -- he clamors for his "boss," pour soul,
    To come again and part him from his roll.
                                                       Offenbach Stutz