oppress

1 ENTRIES FOUND:
oppress /əˈprɛs/ verb
oppresses; oppressed; oppressing
oppress
/əˈprɛs/
verb
oppresses; oppressed; oppressing
Britannica Dictionary definition of OPPRESS
[+ object]
1 
: to treat (a person or group of people) in a cruel or unfair way
2 
: to make (someone) feel sad or worried for a long period of time — usually used as (be) oppressed

the oppressed

: people who are oppressed

— oppression

/əˈprɛʃən/ noun [noncount]

— oppressor

/əˈprɛsɚ/ noun, plural oppressors [count]