Existence, Life, Survival
noun
Existing life is in existence on this planet... What would that say about life and survival in such an unforgiving place?
せいぞん
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.
生存者は一人だけでした。
There was only one survivor.
体力はかなり落ちてるけど、かろうじて生存はしてます。
My physical strength has significantly declined, but I'm still barely hanging on to survival.
エアコン、水、電気、ガスは生存に関わるから、インフレさせちゃいけないと思う。
I think we shouldn't let inflation affect essentials like air conditioning, water, electricity, and gas, as they are crucial for survival.