improve

[1]	better , better , amend , ameliorate , upgrade , ameliorate , meliorate , uplift , amend , enhance , fix up , reform , redeem , rehabilitate , redress , repair , correct , rectify , put/set right , emend , modernize , update , refurbish , recondition , renovate , repair , overhaul , remodel
[2]	develop , better , ameliorate , increase , advance , meliorate , promote , further , benefit , look up , recover , pick up , (Colloq) give a new lease of/(US) on life , take a turn for the better , (US) take a new lease on life
[3]	convalesce , recuperate , recover , get better , mend , rally , (make) progress , gain (strength/ground) , revive