This is a difficult question, but I will give it a try.  I would require access to datasets such as https://www.kaggle.com/datasets/rtatman/english-word-frequency in order to give you are more accurate answer.

Here are some of the most common phrases that have the word cyber in them and a short definition:

    Cyberwarfare - Usually the malicious action of a nation-state across networks, or the attempt to defend against such attacks.
    Cybersecurity - The methods and actions taken to systems from misuse, unauthorized access or attack.
    Cybercrime - Misuse of computers for criminal purposes.
    Cyberattack - Attack on, or disruption to a network or computer system.
    Cyberbullying - The use of the internet or network enabled communication to harass others.
    Cyber espionage - Espionage using the internet and computer networks.
    Cyberterrorism - The use or disruption of computer systems in a manner that cause great harm akin to, or for the purposes of, a terrorist attack.
    Cyberstalking - The use of digital tools or the internet to stalk someone.
    Cyber fraud - A form of Cybercrime, but specifically as a form of fraud. 
    Cybernetics - The science of communication and control theory that is concerned especially with the comparative study of automatic control systems.
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