Watertight
Noun, する verb, and の adjective
ぼうすい
水害被災者達は、防水の家具をそろえておけばよかったと口をそろえて言いました。
All the victims of the flood said they wished they'd had waterproof furniture.
完全防水するには、これを使うしかないよ。
If you want it to be 100% watertight, you have to use this.
この防水ブーツ、防水されているとはとても言えないな。この辺りを歩いてるだけで、足がビショビショになっちゃったよ。
These waterproof boots are far from being waterproof. My feet got soaking wet from just walking around here.
Something that prevents water is waterproof and watertight. Time to take a bath with my 防水 cell phone...
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.