Search over 300,000 sheet music arrangements available instantly to print or play in our free apps.
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.
Definition of assist. transitive verb. : to give usually supplementary support or aid to She assisted the boy with his lessons. intransitive verb. 1 : to give support or aid assisted at the stove Another surgeon assisted on the operation.