This is the 8511th most frequent Japanese word.
抑圧
"Suppression" or "oppression."
The word "抑圧" is used to describe suppression or oppression enacted on expressing free opinions.
人々は自由な意見表明を抑圧されている。
People are being oppressed in expressing their free opinions.
The term "抑圧" takes the meaning of internal or self-imposed suppression.
自己抑圧によって彼は本当の感情を隠していた。
Through self-repression, he was hiding his true emotions.
Here, "抑圧" refers specifically to governmental and systemic oppression.