Sick
Illness, Sickness, Disease
noun, の adjective
When your energy is that of sickness, you are probably sick.
びょうき
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.
母の病気は、まだよくなりません。
My mother’s illness still hasn’t improved.
おしりからおならが止まらない病気にかかってしまい、外に出られなくなってしまいました。
I got a disease that makes me fart all the time, so I've haven't been able to go outside.
「先生、僕のママの病気、直せるの？」「やってみるけど、当てにしないでね。」
"Can you fix my mom’s illness, doctor?" "I’ll give it a try, but don’t count on it."