If you retake a course or an examination, you take it again because you failed it the first time. I had one year in the sixth form to retake my GCSEs. Retake is also a noun. Limits will be placed on the number of exam retakes students can sit. = resit
If during the making of a film there is a retake of a particular scene, that scene is filmed again because it needs to be changed or improved. The director, Ron Howard, was dissatisfied with Nicole's response even after several retakes
take back by force, as after a battle; "The military forces managed to recapture the fort"
If a military force retakes a place or building which it has lost in a war or battle, it captures it again. Residents were moved 30 miles away as the rebels retook the town. = recapture