Source : Webster's Revised Unabridged Dictionary (1913)

Regain \Re*gain"\ (r?*g?n"), v. t. [Pref. re- + gain: cf. F.
   regagner.]
   To gain anew; to get again; to recover, as what has escaped
   or been lost; to reach again.

   Syn: To recover; reobtain; repossess; retrieve.

Source : WordNet®

regain
     v 1: get or find back; recover the use of; "She regained control
          of herself"; "She found her voice and replied quickly"
          [syn: {recover}, {retrieve}, {find}]
     2: come upon after searching; find the location of something
        that was missed or lost; "Did you find your glasses?"; "I
        cannot find my gloves!" [syn: {find}] [ant: {lose}]