Delegate between Container Views without using Segue - ios

Question

I'm trying to pass text from one textField to another textField (both of them are located in two different containerViews). I try to accomplish this with delegate. I've already read tons of related questions here, at stack overflow and read a couple of articles, so, I think I'm doing well except one thing: I don't know how to delegate without segue. Here's the code:
protocol AddOneWordViewControllerDelegate: class {
func changeTexeValue(_ text: String?)
}
class AddOneWordViewController: UIViewController, UITextFieldDelegate {
#IBOutlet weak var oneWordAddWord: UITextField!
weak var delegate: AddOneWordViewControllerDelegate?
override func viewDidLoad() {
super.viewDidLoad()
}
#IBAction func addOneWordWordChanged(_ sender: UITextField) {
self.delegate?.changeTexeValue(oneWordAddWord.text!)
print ("Value of the textField did change \(oneWordAddWord.text!)")
} // this action is from textField, named "Value Changed"
}
class AddTwoWordsViewController: UIViewController, UITextFieldDelegate, AddOneWordViewControllerDelegate {
#IBOutlet weak var twoWordsAddWord: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
}
func changeTexeValue(_ text: String?) {
self.twoWordsAddWord.text = text
print("Delegate is working")
}
}