The Collaborative International Dictionary of English v.0.48:

Hire \Hire\, v. t. [imp. & p. p. Hired (h[imac]rd); p. pr. &
   vb. n. Hiring.] [OE. hiren, huren, AS. h[=y]rian; akin to
   D. huren, G. heuern, Dan. hyre, Sw. hyra. See Hire, n.]
   [1913 Webster]
   1. To procure (any chattel or estate) from another person,
      for temporary use, for a compensation or equivalent; to
      purchase the use or enjoyment of for a limited time; as,
      to hire a farm for a year; to hire money.
      [1913 Webster]

   2. To engage or purchase the service, labor, or interest of
      (any one) for a specific purpose, by payment of wages; as,
      to hire a servant, an agent, or an advocate.
      [1913 Webster]

   3. To grant the temporary use of, for compensation; to engage
      to give the service of, for a price; to let; to lease; --
      now usually with out, and often reflexively; as, he has
      hired out his horse, or his time.
      [1913 Webster]

            They . . . have hired out themselves for bread. --1
                                                  Sam. ii. 5.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

hired \hired\ adj.
   performing work for pay; as, hired hands.

   Note: used in contrast with the owner or family members who
         work in an enterprise
         [WordNet 1.5]

WordNet (r) 3.0 (2006):

hired
    adj 1: having services engaged for a fee; "hired hands"; "a
           hired gun"
    2: hired for the exclusive temporary use of a group of
       travelers; "a chartered plane"; "the chartered buses arrived
       on time" [syn: chartered, hired, leased] [ant:
       unchartered]

Moby Thesaurus II by Grady Ward, 1.0:

23 Moby Thesaurus words for "hired":
   acquitted, chartered, discharged, employed, expended, hireling,
   leased, let, liquidated, mercenary, paid, paid in full, postpaid,
   prepaid, receipted, remitted, rented, salaried, settled, spent,
   subleased, sublet, waged