noun
clean-up campaign; beautification drive
Refers to organized community efforts to clean up and beautify public spaces, such as picking up litter or planting flowers.
今週末、町内会で美化運動を行います。
This weekend, the neighborhood association will hold a clean-up campaign.
美化運動の一環として、駅前の清掃に参加した。
As part of the beautification drive, I participated in cleaning up in front of the station.
Compound of 美化 (beautification) and 運動 (movement, campaign).