mil·lion (m?l?y?n)n. pl. million or mil·lions 1. The cardinal number equal to 106.2. A million monetary units, such as dollars: made a million in the stock market.3. often millions An indefinitely large number: millions of bicycles on the road.4. often millions The common people; the masses: entertainment for the millions.[Middle English milioun, from Middle French million, from Old Italian millione, augmentative of mille, thousand, from Latin m?lle; see gheslo- in Indo-European roots.]mil?lion adj.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.million (?m?lj?n) n, pl -lions or -lion1. (Mathematics) the cardinal number that is the product of 1000 multiplied by 1000. See also number12. (Mathematics) a numeral, 1 000 000, 106, M, etc, representing this number3. (often plural) informal an extremely large but unspecified number, quantity, or amount: I have millions of things to do. determiner4. a. amounting to a million: a million light years away. b. (as pronoun): I can see a million under the microscope. 5. gone a million informal Austral done for; sunk[C17: via Old French from early Italian millione, from mille thousand, from Latin]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014mil?lion (?m?l y?n) n., pl. -lions, (as after a numeral) -lion, n. 1. a cardinal number, 1000 times 1000. 2. a symbol for this number, as 1,000,000 or M?. 3. millions, a number between 1,000,000 and 999,999,999. 4. the amount of a million units of money: The painting fetched a million. 5. a very great number: Thanks a million. 6. the million(s), the mass of the common people: poetry for the millions. adj. 7. amounting to one million in number. [1350?1400; A million or one million is the number 1,000,000.Be Careful!Don’t add ‘-s’ to the word million when you put another number in front of it. Don’t say, for example, ‘five millions dollars’. Say ‘five million dollars’.