以上 ①

以上 is used after numbers, quantities, or measurements to mean “not less than” or “more than.” It emphasizes that the value is at least the stated amount and can imply that it is greater or equal to that amount. It is common in both written and spoken language for formal statements, comparisons, prices, time durations, and limits. When used with time expressions, 以上 conveys “more than X days,” “the past X years, and so on.” It does not require anything after 以上 to indicate a maximum; it sets a lower bound. Be mindful that 以上 can feel formal; in casual speech you might hear より or 以上の is used in written notices, announcements, or when giving instructions.