He ignored all the ‘No Smoking’ signs and lit up a cigarette.

I made a suggestion but they chose to ignore it.

We cannot afford to ignore their advice.

to ignore a warning/a problem/an issue

She deliberately ignored my question and changed the subject.

We can't ignore the fact that there is a huge problem here.

His work was largely ignored and forgotten for 30 years.

Much of social science research simply ignores these sectors.

The government has completely ignored the wishes of the public.

She ignored him and carried on with her work.

If he tries to start an argument, just ignore him.