build-up

Từ điển Oxford Advanced Learner 8th

ˈbuild-up [build-up build-ups] BrE NAmE noun
1. singular, uncountable an increase in the amount of sth over a period of time
•a steady build-up of traffic in the evenings
•carbon dioxide build-up in the atmosphere
2. countable, usually singular ~ (to sth) the time before an important event, when people are preparing for it
•the build-up to the President's visit
•the build-up to her wedding
3. countable, usually singular a very positive and enthusiastic description of sth that is going to happen, that is intended to make people excited about it
•The media have given the show a huge build-up.

Example Bank:
•The leak led to a slow build-up of carbon dioxide.