Definition of aid verb from the Oxford Advanced Learner's Dictionary

    

aid

 verb
verb
BrE BrE//eɪd//
 
; NAmE NAmE//eɪd//
 
Verb Forms present simple I / you / we / they aid
BrE BrE//eɪd//
 
; NAmE NAmE//eɪd//
 
he / she / it aids
BrE BrE//eɪdz//
 
; NAmE NAmE//eɪdz//
 
past simple aided
BrE BrE//ˈeɪdɪd//
 
; NAmE NAmE//ˈeɪdɪd//
 
past participle aided
BrE BrE//ˈeɪdɪd//
 
; NAmE NAmE//ˈeɪdɪd//
 
-ing form aiding
BrE BrE//ˈeɪdɪŋ//
 
; NAmE NAmE//ˈeɪdɪŋ//
 
 
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  •  [intransitive, transitive] (formal) to help somebody/something to do something, especially by making it easier synonym assist aid (somebody/something) 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. aid somebody (with something) Words will be displayed around the room to aid students with spelling.
  • Word Origin late Middle English: from Old French aide (noun), aidier (verb), based on Latin adjuvare, from ad- ‘towards’ + juvare ‘to help’.Extra examples Aided by fire and strong winds, the fire quickly spread. Candidates are aided by volunteers who do doorstep canvassing. Computers can be used to aid in management decision-making. Each group is aided by a tutor or consultant. New drugs are now available to aid recovery. Peppermint aids digestion. The dolphin’s skin is designed to aid maximum swimming efficiency. The government has promised to aid and support the new venture. to facilitate/​assist/​aid a process/​transition to facilitate/​assist/​aid the development of something.Idioms  (law) to help somebody to do something illegal or wrong She stands accused of aiding and abetting the crime. He was charged with aiding and abetting the robbers.
    See the Oxford Advanced American Dictionary entry: aid