Here are some examples of how "vicious" can be used:
* Vicious attack: This refers to a violent and brutal attack, often with the intention of causing harm.
* Vicious rumors: These are malicious and unfounded stories spread to damage someone's reputation.
* Vicious circle: This refers to a repeating pattern of negative events or behaviors.
* Vicious dog: A dog that is aggressive and prone to biting.
* Vicious cycle: A situation characterized by a series of negative events that feed on each other.
It's important to note that "vicious" can also be used in a figurative sense. For example, you might say "the vicious heat" or "the vicious cycle of poverty" to describe something intense or unrelenting.