Definition from macmillandictionary.com
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The UN provided emergency economic aid to the refugees.
She said the government should spend more on overseas aid.
financial aid for small businesses
The police tried to enlist the aid of the public in solving the crime.
Several people heard her screams, but no one went to her aid.
Chromosomes can be seen with the aid of a microscope.
The pupils created the wall painting with the aid of a local artist.
Hypnosis can be an aid to giving up smoking.
Songs can be very useful as memory aids.