1. (尤指在战争中)征服，制服，使屈服
If someone subjugates a group of people, they take complete control of them, especially by defeating them in a war.

1. put down by force or intimidation

e.g. The government quashes any attempt of an uprising
China keeps down her dissidents very efficiently
The rich landowners subjugated the peasants working the land

Synonym: repressquashkeep downsubduereduce

2. make subservient
force to submit or subdue

Synonym: subject