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

 

deter

 verb
verb
BrE BrE//dɪˈtɜː(r)//
 
; NAmE NAmE//dɪˈtɜːr//
 
Verb Forms present simple I / you / we / they deter
BrE BrE//dɪˈtɜː(r)//
 
; NAmE NAmE//dɪˈtɜːr//
 
he / she / it deters
BrE BrE//dɪˈtɜːz//
 
; NAmE NAmE//dɪˈtɜːrz//
 
past simple deterred
BrE BrE//dɪˈtɜːd//
 
; NAmE NAmE//dɪˈtɜːrd//
 
past participle deterred
BrE BrE//dɪˈtɜːd//
 
; NAmE NAmE//dɪˈtɜːrd//
 
-ing form deterring
BrE BrE//dɪˈtɜːrɪŋ//
 
; NAmE NAmE//dɪˈtɜːrɪŋ//
 
 
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[transitive, intransitive] deter (somebody) (from something/from doing something) to make somebody decide not to do something or continue doing something, especially by making them understand the difficulties and unpleasant results of their actions I told him I wasn't interested, but he wasn't deterred. The high price of the service could deter people from seeking advice. see also deterrent Word Origin mid 16th cent.: from Latin deterrere, from de- ‘away from’ + terrere ‘frighten’.Extra examples The present system does little to deter corporate crime. These new rules are likely to deter people from coming forward for help. Will this harsher punishment effectively deter criminals?
See the Oxford Advanced American Dictionary entry: deter