acquire, get - come into the possession of something concrete or abstract; "She got a lot of paintings from her uncle"; "They acquired a new pet"; "Get your results the next day"; "Get permission to take a few days off from work"

catch up with, make up - make up work that was missed due to absence at a later point; "I have to make up a French exam"; "Can I catch up with the material or is it too late?"

retrovert, revert, turn back, regress, return - go back to a previous state; "We reverted to the old rules"

rebound, rally - return to a former condition; "The jilted lover soon rallied and found new friends"; "The stock market rallied"

cure, bring around, heal - provide a cure for, make healthy again; "The treatment cured the boy's acne"; "The quack pretended to heal patients but never managed to"

convalesce, recover, recuperate - get over an illness or shock; "The patient is recuperating"

gain vigor, perk, perk up, percolate, pick up - gain or regain energy; "I picked up after a nap"

recuperate - restore to good health or strength

ameliorate, improve, meliorate, better - get better; "The weather improved toward evening"