To Thwart
To Hamper, To Prevent
godan verb
Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means thwart and the verb vocab version is to thwart or to hamper.
はばむ
Someone walks up to you, saying "habbah habbah habbah" (kind of like hubbah hubbah). He's trying to flash you or something. So, you go to thwart him with your taser.
誰かが、彼が今日娘さんを連れてバージンロードを歩くのを阻もうとしているようなんです。
It seems like someone is trying to prevent him from walking his daughter down the aisle today.