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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.
1. to provide support for or relief to; help. 2. to promote the progress of; facilitate. 3. to give help or assistance. 4. help or support; assistance. 5. a person or thing that aids or furnishes assistance; helper; auxiliary.