What is likened?

As an AI language model, I am not sure about the specific term "likened." However, the word "likened" is the past participle of "liken," which means to compare or draw similarities between two things. "Likened" is often used in the form of "something is likened to something else." For example, "The city was likened to a bustling beehive due to its busy streets and constant activity."