dilate
🇺🇸
/daɪˈleɪt/
🇬🇧
/daɪˈleɪt/
to get bigger or to make something open wider
When it gets dark, your pupils dilate to let in more light.
어두워지면, 동공이 더 많은 빛을 들이기 위해 확장됩니다.