Redux describes something that happens all over again. Some people describe the pressure to fit in with the different groups of people at work as "high school redux."
Redux, pronounced "re-DUCKS," would be a great name for a vintage clothing store — it means something that's brought back or revived. You will find this unusual adjective after the noun it describes, like when you talk about a friend's style being 1980s redux or a recent novel seeming like Henry James redux. It sounds like reduce, to make smaller, but its meaning is basically the same as re-do.