Sentence:  In very short order a flood of <WSD>supercharacter</WSD> lookalikes was being turned out by both Superman's publisher and the other publishers who, as publishers always do, vied with each other in rushing to market with hastily prepared imitations of each other's products in hopes of cleaning up before new product's novelty could die away. 
Meaning of the word marked with <WSD> tags:  A superhero or supervillain.