The Collaborative International Dictionary of English v.0.48:

String \String\ (str[i^]ng), v. t. [imp. Strung (str[u^]ng);
   p. p. Strung (R. Stringed (str[i^]ngd)); p. pr. & vb. n.
   Stringing.]
   1. To furnish with strings; as, to string a violin.
      [1913 Webster]

            Has not wise nature strung the legs and feet
            With firmest nerves, designed to walk the street?
                                                  --Gay.
      [1913 Webster]

   2. To put in tune the strings of, as a stringed instrument,
      in order to play upon it.
      [1913 Webster]

            For here the Muse so oft her harp has strung,
            That not a mountain rears its head unsung.
                                                  --Addison.
      [1913 Webster]

   3. To put on a string; to file; as, to string beads.
      [1913 Webster]

   4. To make tense; to strengthen.
      [1913 Webster]

            Toil strung the nerves, and purified the blood.
                                                  --Dryden.
      [1913 Webster]

   5. To deprive of strings; to strip the strings from; as, to
      string beans. See String, n., 9.
      [1913 Webster]

   6. To hoax; josh; jolly; often used with along; as, we strung
      him along all day until he realized we were kidding.
      [Slang]
      [Webster 1913 Suppl. +PJC]

The Collaborative International Dictionary of English v.0.48:

Strung \Strung\,
   imp. & p. p. of String.
   [1913 Webster]

WordNet (r) 3.0 (2006):

strung
    adj 1: that is on a string; "keys strung on a red cord"