noun
million; one million
A katakana way to say or evoke 'one million.' In ordinary counting, 百万 is often the more standard Japanese expression, while ミリオン is common in compounds and promotional wording such as ミリオン再生 or ミリオンヒット.
その動画は一晩でミリオン再生を超えた。
That video passed one million views overnight.
彼らはミリオンヒットを狙って新曲
They released a new song aiming for a million-hit success.
noun
million-seller
Abbreviation of ミリオンセラー. Used mainly in entertainment, publishing, and sales contexts to mean that a work has sold a million copies or units.
See also: ミリオンセラー
彼らのデビューアルバムはミリオンを達成した。
Their debut album became a million-seller.
その小説は発売から半年でミリオンになった。
The novel became a million-seller within half a year of its release.