The Collaborative International Dictionary of English v.0.48:

Ado \A*do"\ ([.a]*d[=oo]"), (1) v. inf., (2) n. [OE. at do,
   northern form for to do. Cf. Affair.]
   1. To do; in doing; as, there is nothing ado. "What is here
      ado?" --J. Newton.
      [1913 Webster]

   2. Doing; trouble; difficulty; troublesome business; fuss;
      bustle; as, to make a great ado about trifles.
      [1913 Webster]

            With much ado, he partly kept awake.  --Dryden.
      [1913 Webster]

            Let's follow to see the end of this ado. --Shak.
      [1913 Webster]

WordNet (r) 3.0 (2006):

ado
    n 1: a rapid active commotion [syn: bustle, hustle,
         flurry, ado, fuss, stir]

The Free On-line Dictionary of Computing (19 January 2023):

ActiveX Data Objects
ADO

    (ADO) Microsoft's
   library for accessing data sources through OLE DB.
   Typically it is used to query or modify data stored in a
   relational database.

   Home

(http://msdn.microsoft.com/library/en-us/ado270/htm/adostartpage1.asp).

   (2003-07-08)