Definition of aid verb from the Oxford Advanced American Dictionary



    [intransitive, transitive]aid (somebody/something) (in something/in doing something)aid somebody (with something)(formal)Verb Forms present simple I / you / we / they aid
    he / she / it aids
    past simple aided
    -ing form aiding
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  1. 1  to help someone or something to do something, especially by making it easier synonym assist
  2. 2 aid in something/in doing something The new test should aid in the early detection of the disease. aid somebody (to do something) This feature is designed to aid inexperienced users. aid something Aided by heat and strong winds, the fire quickly spread. Some perfumes aid restful sleep. They were accused of aiding his escape. aid somebody/something in something/in doing something They were accused of aiding him in his escape.
  3. Idioms
    aid and abet(law)
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    to help someone to do something illegal or wrong She stands accused of aiding and abetting the crime.
See the Oxford Advanced Learner's Dictionary entry: aid