I am currently working on the UI and for some reason, the scoreLabel space extends down vertically. I will add screenshots for better clarification. I have tried setting the ContentHuggingPriority to 1, but it doesn't change anything. How can I rectify this situation? https://imgur.com/a/IoU8hHT

import UIKit

class ViewController: UIViewController {
    var wordToGuess: UITextField!
    var scoreLabel: UILabel!
    var listOfWords = [String]()
    var letterBtns = [UIButton]()
    var pressedBtns = [UIButton]()

    override func loadView() {
        view = UIView()
        view.backgroundColor = .white

        scoreLabel = UILabel()
        scoreLabel.translatesAutoresizingMaskIntoConstraints = false
        scoreLabel.textAlignment = .right
        scoreLabel.text = "Score: 0"
        scoreLabel.setContentHuggingPriority(UILayoutPriority(1), for: .vertical)
        view.addSubview(scoreLabel)

        wordToGuess = UITextField()
        wordToGuess.translatesAutoresizingMaskIntoConstraints = false
        wordToGuess.textAlignment = .center
        wordToGuess.font = UIFont.systemFont(ofSize: 44)
        wordToGuess.isUserInteractionEnabled = false
        wordToGuess.placeholder = "------"
        view.addSubview(wordToGuess)

        let newGameBtn = UIButton(type: .system)
        newGameBtn.translatesAutoresizingMaskIntoConstraints = false
        newGameBtn.setTitle("New Game", for: .normal)
        // newGameBtn.addTarget(self, action: #selector(newGameTapped), for: .touchUpInside)
        view.addSubview(newGameBtn)

        let buttonView = UIView()
        buttonView.translatesAutoresizingMaskIntoConstraints = false
        view.addSubview(buttonView)

        NSLayoutConstraint.activate([
            scoreLabel.topAnchor.constraint(equalTo: view.layoutMarginsGuide.topAnchor),
            scoreLabel.trailingAnchor.constraint(equalTo: view.layoutMarginsGuide.trailingAnchor),
            wordToGuess.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            wordToGuess.widthAnchor.constraint(equalTo: view.widthAnchor, multiplier: 0.5),
            wordToGuess.topAnchor.constraint(equalTo: scoreLabel.bottomAnchor, constant: 100),
            newGameBtn.topAnchor.constraint(equalTo: view.layoutMarginsGuide.topAnchor),
            newGameBtn.leadingAnchor.constraint(equalTo: view.layoutMarginsGuide.leadingAnchor),

            buttonView.widthAnchor.constraint(equalToConstant: 750),
            buttonView.heightAnchor.constraint(equalToConstant: 320),
            buttonView.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            buttonView.topAnchor.constraint(equalTo: wordToGuess.bottomAnchor, constant: 100),
            buttonView.bottomAnchor.constraint(equalTo: view.layoutMarginsGuide.bottomAnchor, constant: -20)

        ])

        scoreLabel.backgroundColor = .blue
        newGameBtn.backgroundColor = .yellow
        wordToGuess.backgroundColor = .green
        buttonView.backgroundColor = .red
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
    }
}

Hi! My guess is that this:

 wordToGuess.topAnchor.constraint(equalTo: scoreLabel.bottomAnchor, constant: 100),

Is pulling the scoreLabel down. You can try the greaterOrEqualThan variant (or whatever is the precise name) :-)