immunosuppressant (an immunosuppressive agent)

taking medicine / wearing clothes

take medicine / wear clothes

suppression

control, suppress, inhibit, curb

replanting / transplantation of organs / grafting of tissue / porting of software

to replant / to transplant / to graft / to port software

an operation; surgery (procedure involving major incisions)

to operate on; to perform surgery on

(archaic) a woman's brother (regardless of age difference) / (archaic) a woman's lover or husband / (archaic) a familiar man