Has Resigned or Resigned?

Both are verbs: the past tense of resign is resigned; similarly that of re-sign is re-signed. “Resign” means to voluntarily give up (a job or position) in a formal or official way; or to make yourself accept something that is bad or that cannot be changed.

Has been resigned meaning?

If you resign from a job or position, you formally announce that you are leaving it. A hospital administrator has resigned over claims he lied to get the job. [ VERB] Mr Robb resigned his position last month. [ VERB noun]

Does resigned need a hyphen?

Both resign and re-sign have the same spelling, one with a hyphen and one without, and the hyphen changes the meaning of the word.