interfere

verb

• 1 (interfere with) prevent (a process or activity) from continuing or being carried out properly:a holiday job would interfere with his studies
• (of a thing) strike against or impede (something) when working:the rotors are widely separated and do not interfere with one another
• handle or adjust (something) without permission, especially so as to cause damage:he admitted interfering with a van

• 2intervene in a situation without invitation or necessity:she tried not to interfere in her children’s lives

• 3 (interfere with) British, euphemistic sexually molest (someone, especially a child).

• 4 (interfere with) Law attempt to bribe or intimidate (a witness): they face charges of conspiracy to obstruct justice and interfering with witnesses

• 5 Physics (of light or other electromagnetic waveforms) interact to produce interference: light pulses interfere constructively in a fibre to emit a pulse
• cause interference to a broadcast radio signal.

• 6(of a horse) knock one foot against the fetlock of another leg.