(1):

(v. i.) To keep the mind in a state of contemplation; to dwell on anything in thought; to think seriously; to muse; to cogitate; to reflect.

(2):

(v. t.) To contemplate; to keep the mind fixed upon; to study.

(3):

(v. t.) To purpose; to intend; to design; to plan by revolving in the mind; as, to meditate a war.