Verb (5-dan, る, transitive)
1. to turn one's head; to look over one's shoulder; to turn around; to look back
だけど、俺は結局ゆっくりと振り返った。But in the end, I slowly turned around.
Verb (5-dan, る, transitive)
2. to think back (on); to reminisce; to look back (on); to reflect (on)
彼は自らの行動を振り返り、これではいけないと思ったのだ。Looking back on his own actions, he thought that this could not go on.