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Phrases. 1  be of assistance. 2  Be of practical use or help. âthe guide will be of assistance to development groupsâ. ââWe hope this small fund and material aid will be of assistance to the victims,â a press release stated.â.
The definition of an intervention is something that comes between two things or something that changes the course of something. An example of intervention is a group of friends confronting a friend about their drug use and asking the friend to seek treatment.