As nouns the difference between rehab and prehab
is that rehab is an act of rehabilitation, especially to treat the use of recreational drugs while prehab is prehabilitation.
As a verb rehab
is to rehabilitate.
rehab
English
Noun
(
en noun)
An act of rehabilitation, especially to treat the use of recreational drugs.
An institution for rehabilitation.
* Amy Winehouse:
- They tried to make me go to rehab , I said, 'no, no, no.'
Verb
To rehabilitate.
prehab
English
Noun
(-)
(informal) prehabilitation