/ rɪˈgeɪn; NAmE / verb [ vn ]
1.
to get back sth you no longer have, especially an ability or a quality :
I struggled to regain some dignity.
The party has regained control of the region.
She paused on the edge, trying to regain her balance .
He did not regain consciousness (= wake up after being unconscious) for several days.
2.
( literary ) to get back to a place that you have left :
They finally managed to regain the beach.
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WORD ORIGIN
mid 16th cent.: from French regagner (see re- , gain ).