To Overwhelm
する verb
The pressure used easily collapses whatever it's pushing against. That's why this verb means to overwhelm.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well. Note that the あつ goes to あっ, as you'd probably expect.
ダリンは自然の美しさに圧倒された。
Darin was overwhelmed by the beauty of the nature.
この新しいサイトは他社の日本語学習サイトを圧倒するだろう。
This new site will overwhelm other Japanese language sites.
ケリー氏は今回の選挙で圧倒的に勝利を収めましたね。彼の勢いには本当に圧倒されました。
Mr. Kerry won this election hands down, didn't he? I was truly astonished by his momentum.