progressionsOur editors are putting together more complete content — check back in about 20 minutesprogressionsprogressions — noun名詞1. a sequence of related things that develop gradually1.名詞釋義a sequence of related things that develop gradually例句The chord progressions in this song are very complex.2. the process of developing or moving forward2.名詞釋義the process of developing or moving forward例句We tracked the progression of the disease.