This is the 8510th most frequent Japanese word.
抑える
To suppress, control, restrain, or hold down.
Here, "抑える" is used to mean control or restrain an emotional response (anger).
彼の怒りを抑えることができないようだ。
It seems he cannot control his anger.
In this example, "抑える" refers to the concept of minimizing or restricting a quantity (costs).
その会議で費用を抑える提案が出された。
A proposal to reduce costs was made at the meeting.
In this sentence, "抑える" means to lessen or suppress a physical sensation or feeling (pain).