also: おうぎょう
noun, noun or participle which takes 'suru', intransitive verb
be rampant; be widespread; be prevalent
Used mainly for undesirable things spreading or occurring unchecked, such as crime, corruption, false information, or bad practices. Often appears as 横行する or 横行している.
偽情報がネット上で横行している。
False information is rampant online.
この地域では違
The prevalence of illegal parking has become a problem in this area.
noun, noun or participle which takes 'suru', intransitive verb
walk sideways; move unsteadily; stride about
Literal or older use based on 横に行く, describing sideways movement, an unsteady gait, or striding. Much less common than the figurative 'rampant' sense in modern Japanese.
カニは横行する動物として知られる。
Crabs are known as animals that walk sideways.
古い表現の「横行闊歩」は、威張って大またに歩く様子を表す。
The old expression 横行闊歩 describes someone striding about arrogantly.