The term EMERGE FROM AN EGG can be summarized by the crossword solution HATCH, which is a five-letter word. Hatching is the process of an embryo emerging from its eggshell after a period of incubation. This process is seen in many species of animals, including birds, reptiles, amphibians, and fish. In some species, the hatching process is assisted by the parent, while in others, the embryo must break out of the eggshell on its own.