East Asian age reckoning; traditional age counting
Abbreviation of 数え年. Refers to the traditional system where a person is 1 at birth and gains a year on New Year's Day, not on their birthday. Often contrasted with 満年齢 (Western-style age).
See also: 数え年 (かぞえどし) · 満 (まん)
By traditional reckoning, my grandmother is turning ninety.
My grandmother will be 90 years old by the traditional count.
Please explain the difference between traditional age reckoning and Western-style age.
By the traditional count, he'll turn seventy this year.
数え counts age by adding a year at each New Year (starting at 1 at birth), while 満 counts age by fully completed years, the modern standard method.
Abbreviation of 数え年 (かぞえどし), literally 'counting years'. The term derives from the traditional East Asian method of counting age.
countless; innumerable; too many to count