Macroevolution is the supposed large-scale change of living things over time which enabled everything alive today to descend from a single ancestor. We have never observed macroevolution.
Evolutionists use this word in a clever and deceptive way. They compare this term to microevolution, which means small changes that we do observe. They claim that given enough time, microevolution (small change) can turn into macroevolution (big change). However, microevolution actually reduces genetic information, which is the direct opposite of what is required to change molecules into man.