Source : Webster's Revised Unabridged Dictionary (1913)

Charter \Char"ter\, v. t. [imp. & p. p. {Chartered}; p. pr. &
   vb. n. {Chartering}.]
   1. To establish by charter.

   2. To hire or let by charter, as a ship. See {Charter party},
      under {Charter}, n.

Chartered \Char"tered\, a.
   1. Granted or established by charter; having, or existing
      under, a charter; having a privilege by charter.

            The sufficiency of chartered rights.  --Palfrey.

            The air, a chartered libertine.       --Shak.

   2. Hired or let by charter, as a ship.

Source : WordNet®

chartered
     adj : hired for the exclusive temporary use of a group of
           travelers; "a chartered plane"; "the chartered buses
           arrived on time" [syn: {hired}, {leased}] [ant: {unchartered}]