ig ‧ nore S2 W2 AC /ɪɡˈnɔː $ -ˈnɔːr/ BrE AmE verb [transitive]
[ Date: 1600-1700 ; Language: French ; Origin: ignorer 'not to know' , from Latin , from ignarus 'not knowing, unknown' , from in- 'not' + gnoscere 'to know' ]
1 . to deliberately pay no attention to something that you have been told or that you know about:
You can’t ignore the fact that many criminals never go to prison.
problems which we can’t afford to ignore
2 . to behave as if you had not heard or seen someone or something:
The phone rang, but she ignored it.
Sam rudely ignored the question.
completely/totally ignore somebody/something
He had completely ignored her remark, preferring his own theory.
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In everyday British English, people often say take no notice of something or not take any notice of something rather than ignore something:
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There are signs telling you not to smoke, but people don’t take any notice of them.