Suppression
Subjugation
noun, する verb, の adjective
Tranquilize pressure with medication that helps with its suppression. Then you won't have to feel it anymore.
ちんあつ
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
警察が三日がかりでデモ隊を鎮圧しました。
The police suppressed the demonstrators by the third day.