prévenir înseamnă în Engleză

help [helped, helping, helps]▼◼◼◼(transitive: avoid or prevent)
verb
[UK: help] [US: ˈhelp]Dates help to prevent cancer. = Les dattes aident à prévenir le cancer.

warn [warned, warning, warns]▼◼◼◼(to notify someone of something)
verb
[UK: wɔːn] [US: ˈwɔːrn]I did warn you. = Je t'avais prévenu.

avert [averted, averting, averts]▼◼◼◻(to ward off)
verb
[UK: ə.ˈvɜːt] [US: ə.ˈvɝːt]

forestall [forestalled, forestalling, forestalls]▼◼◼◻(to prevent)
verb
[UK: fɔː.ˈstɔːl] [US: fɔːr.ˈstɒl]Our aim is to forestall all those risks. = Notre objectif est de prévenir tous ces risques.

ward off▼◼◻◻(to avert or prevent)
verb
[UK: wɔːd ɒf] [US: ˈwɔːrd ˈɒf]

prevention is better than cure▼◼◼◼(It is better to prevent the creation of a problem than to have to deal with it afterwards.)
phrase
[UK: prɪ.ˈven.ʃn̩ ɪz ˈbe.tə(r) ðæn kjʊə(r)] [US: pri.ˈven.ʃn̩ ˈɪz ˈbe.tər ˈðæn ˈkjʊr]

better safe than sorry▼◼◼◻(it is preferable to be cautious)
phrase
[UK: ˈbe.tə(r) seɪf ðæn ˈsɒ.ri] [US: ˈbe.tər ˈseɪf ˈðæn ˈsɑː.ri]

a stitch in time saves nine▼◼◻◻(a timely effort can prevent larger problems)
phrase
[UK: ə stɪtʃ ɪn ˈtaɪm seɪvz naɪn] [US: ə ˈstɪtʃ ɪn ˈtaɪm ˈseɪvz ˈnaɪn]