interfere >> ɪntəˈfɪə
Definition: [verb] intervene in a situation without invitation or necessity.
Example: you promised not to interfere
Definition: [verb] prevent (a process or activity) from continuing or being carried out properly.
Example: a holiday job would interfere with his studies
Definition: [verb] handle or adjust (something) without permission, especially so as to cause damage.
Example: he admitted interfering with a van
Definition: [verb] (of light or other electromagnetic waveforms) interact to produce interference.
Example: light pulses interfere constructively in a fibre to emit a pulse
Definition: [verb] (of a horse) knock one foot against the fetlock of another leg.