noun
Umbrella Revolution
Refers specifically to the 2014 pro-democracy protests in Hong Kong, named after the umbrellas used by protesters against pepper spray and tear gas.
2014年の雨傘革命は香港の民主化運動の象徴的な出来事だった。
The 2014 Umbrella Revolution was a symbolic event in Hong Kong's pro-democracy movement.
From 雨傘 (umbrella) + 革命 (revolution), a calque of English 'Umbrella Revolution', referring to the umbrellas used by protesters.