turn around

nouns

turning in an opposite direction or position
"the reversal of the image in the lens"

verbs

turn abruptly and face the other way, either physically or metaphorically
"He turned around to face his opponent"; "My conscience told me to turn around before I made a mistake"
improve dramatically
"The new strategy turned around sales"; "The tutor turned around my son's performance in math"
is a type of (narrower)
to make better
"The editor improved the manuscript with his changes"
improve significantly; go from bad to good
"Her performance in school picked up"