span of life; one's days; lifetime
Refers to the length of a person's life or the time they have left to live. Often used in solemn or reflective contexts.
He realized that his remaining days were few.
A somewhat literary or old-fashioned way to refer to one's predetermined fate or destiny, often with a nuance of life's course.
He set out on a journey following his destiny.
assigning a name to a number
Technical term used in mathematics or linguistics, especially in the compound 命数法 (めいすうほう, 'numeration system'). Rarely used alone.
See also: 命数法
The term 命数法 refers to a system for representing numbers.
numeration system
Compound of 命 (めい, 'life, fate') and 数 (すう, 'number'). The exact historical derivation is uncertain; the spelling is conventionally associated with the meanings of lifespan and destiny.