妨 - disturb, prevent, hamper

obstruction; hindrance

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

to disturb; to prevent; to obstruct; to hinder

jammer (e.g. radio signals)

sabotage

interference; obstruction; sabotage

obstruction of justice

traffic obstruction

obstacle

saboteur

interference with a public servant in the execution of his or her duties

obstructive tactics; harassing tactics