to get involved in and try to influence a situation that does not concern you, in a way that annoys other people I wish my mother would stop interfering and ...

to illegally try to influence somebody who is going to give evidence in court, for example by threatening them or offering them money.

the act of getting involved in and trying to influence a situation that should not really involve you, in a way that annoys other people. interference (in ...

There are ten meanings listed in OED's entry for the verb interfere, two of which are labelled obsolete. See 'Meaning & use' for definitions, usage, and ...

[usually before noun] (disapproving) ​involving yourself in an annoying way in other people's private lives. She's an interfering busybody!

1interference (in something) the act of interfering They resent foreign interference in the internal affairs of their country. · 2interruption of a radio signal ...

to involve yourself in matters connected with other people without being asked or needed: Interfering in other people's arguments is always a mistake.

[usually before noun] (disapproving) involving yourself in an annoying way in other people's private lives.

[intransitive] to become involved in a situation in order to improve or help it. She might have been killed if the neighbours hadn't intervened. intervene ...