1
to lay waste;to devastate;to damage
庭を荒らしたのは誰だ。
Who destroyed the garden?
2
to invade;to break into
彼らは私の果実園を荒らした。
They robbed my orchard.
3
to troll (e.g. web forums);to spam
掲示板を荒らす人の精神状態がわかりません。
I just don't understand what goes through the minds of people who troll forums.
Other forms
荒す 【あらす】 (search-only kanji form)