妨 - disturb, prevent, hamper

obstruction; hindrance

to disturb; to prevent; to obstruct; to hinder

obstruction; hindrance; blocking; disturbance; interference; interruption; sabotage; jamming (a signal)

radio jamming

sabotage

obstructive tactics; harassing tactics

saboteur

falsely provoked arrest for obstruction; police pretending to be knocked down so as to have grounds for an arrest

(crime of) obstruction; obstruction charge

obstructing the discharge of official duties; hindering a government official in the execution of his duties

jammer (e.g. radio signals)

public nuisance