Occupational therapy (OT)
Rehabilitation focused on regaining ability to perform daily activities and tasks.
OT addresses activities of daily living (dressing, cooking, bathing) and is especially important after stroke, neuro surgery, hand surgery, and major trauma.
What this means for you: don't conflate OT with PT. They're complementary — PT for movement, OT for function.
What a term means for you depends on your own reports. Ask your treating doctor, or send your reports for a free review.