<p><strong>Noun</strong></p><ul><li>a cardinal number, a thousand times one thousand.</li><li>a symbol for this number, as 1,000,000 or M̅.</li><li>millions, a number between 1,000,000 and 999,999,999, as in referring to an amount of money: His fortune was in the millions of dollars.</li><li>the amount of a thousand thousand units of money, as dollars, pounds, or euros: The three Dutch paintings fetched a million.</li><li>a very great number of times: Thanks a million.</li><li>the million(s), the mass of the common people; the multitude: poetry for the millions.</li></ul><p><strong>Adjective</strong></p><ul><li>amounting to one million in number.</li><li>amounting to a very great number: a million things to do.</li></ul>