"Light bulb" is a common term used to refer to an electric lamp that produces light when a current flows through its filament. However, there are alternative words that can be used to describe this invention. Some synonyms for "light bulb" include incandescent lamp, bulb, glow lamp, filament lamp, and electric light. These words refer to the same device, but they highlight different aspects, such as the type of filament or the way the lamp emits light. Using synonyms can be beneficial, as it can help to avoid repetition and make your writing or speech more varied and engaging.