sympathizer
🇺🇸
/ˈsɪmpəθaɪzər/
🇬🇧
/ˈsɪmpəθaɪzə(r)/
A person who agrees with or supports a particular group or idea.
Many people became sympathizers of the environmental movement after learning about climate change.
多くの人々が、気候変動について知った後、環境運動の支持者になりました。