The Collaborative International Dictionary of English v.0.48:

Enlist \En*list"\, v. t. [imp. & p. p. Enlisted; p. pr. & vb.
   n. Enlisting.]
   1. To enter on a list; to enroll; to register.
      [1913 Webster]

   2. To engage for military or naval service, the name being
      entered on a list or register; as, to enlist men.
      [1913 Webster]

   3. To secure the support and aid of; to employ in advancing
      interest; as, to enlist persons in the cause of truth, or
      in a charitable enterprise.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

enlisted \enlisted\ adj. prenom. (Mil.)
   designating to those members of the armed forces not
   commissioned as an officer; as, an enlisted man.
   [WordNet 1.5]