interference (suomeksi)

häirintä (s: act of interfering with something / illegal obstruction of an opponent in some ball games)
väliintulo (s: act of interfering with something)
puuttuminen (s: act of interfering with something)
interferenssi (s: fys. / effect caused by the superposition of two systems of waves)
häiriö (s: tv- tai radiolähetyksen / distortion on a broadcast signal due to atmospheric or other effects)
estäminen (s: illegal obstruction of an opponent in some ball games)