English definition of “none”
› not any: None of them smoke. In 1992, the company had 2,700 part-time workers. Today it has none. There were only three births here in March and none at all in April. Of the Democratic candidates, none has an obvious lead. He asked if there was any hope. I told him frankly that there was none.
none too clean/clever/pleased, etc › not at all clean/clever/pleased, etc: His handkerchief was none too clean.
none the happier/poorer/wiser, etc › not any happier/poorer/wiser, etc than before: She must have explained the theory three times, but I'm still none the wiser.