sealing
🇺🇸
/ˈsiːlɪŋ/
🇬🇧
/ˈsiːlɪŋ/
the act of closing something tightly to prevent leakage or to keep something inside
The workers were busy with the sealing of the windows to keep the cold air out.
窓を密封して寒い空気を外に留めるために、作業員たちは忙しく働いていた。