ichidan verb, transitive verb
hit against; strike against; knock against
Describes forcefully bringing an object into contact with another surface or object. Often implies a deliberate or accidental collision.
彼は怒って拳を壁に打ち当てた。
He angrily struck his fist against the wall.
強風で飛ばされた看板が窓
The signboard blown by the strong wind was knocked against the window.