increase, expansion, rise, development, progression, escalation, enlargement, surge, uptick, buildup, boost, increment, maturation, advance, amplification
accumulation - build-up - increase - growth - expansion - intensification - escalation - mounting - rise - amassing - collection - accrual - aggregation
The term "buildup" refers to a gradual increase or accumulation of something over time. It can describe physical substances, such as plaque in arteries or dirt on a surface, as well as abstract things like tension, excitement, or resources. In many contexts, it emphasizes a step-by-step process that leads to a significant result, such as the buildup to an event, the buildup of pressure, or the buildup of military forces. The word is often used to highlight how small, incremental changes can collectively create a notable or sometimes problematic state.