intervene in a situation without invitation or necessity
you promised not to interfere
she tried not to interfere in her children's lives
prevent (a process or activity) from continuing or being carried out properly
a holiday job would interfere with his studies
(of light or other electromagnetic waveforms) interact to produce interference
light pulses interfere constructively in a fibre to emit a pulse
(of a horse) knock one foot against the fetlock of another leg