Student or Learner
wrinkle your brow
to make folds appear on your face above your eyes to show that you are surprised or confused
to bring your eyebrows together so that there are lines on your face above your eyes to show that you are annoyed or worried.
After I saw these meanings from the dictionary, I think that "wrinkle you brow" and "frown" are same because in both we try to make folds/lines in our brow. Am I right?