Emily Dickinson Lexicon

MILL-ION, a. [mil'yun; Fr. million; It. milione; Sp. millon; Port. milham; probably from L. mille, a thousand.]

1. The number of ten hundred thousand, or a thousand thousand. It is used as a noun or an adjective; as, a million of men, or a million men. As a noun, it has a regular plural, millions.
2. In common usage, a very great number, indefinitely. There are millions of truths that men are not concerned to know. Locke.