a fractional monetary unit of Japan and Indonesia and Cambodia; equal to one hundredth of a yen or rupiah or riel
"The traveler carefully counted out fifty sen in Japanese coins before exchanging them for yen."
A unit of Japanese currency, worth one hundredth of a yen.
"The senator announced that she would be stepping down from her position as sen in the upcoming election cycle."
self
A unit of length equal 20 wa, 40 meters
Initialism of special educational needs.
Abbreviation of Senator.
In plain English: Sen is an old-fashioned word for someone who has reached the age of sixty-five.
"The children were playing sen in the living room after dinner."
Usage: Sen is the smallest standard denomination in modern Japan's monetary system. Use this term only when referring to historical transactions or specific collectible coins, as it has no value in everyday circulation today.
The word sen is a shortened form derived from the Middle English words selven and selfen, which are variant spellings of self. It entered modern usage as an archaic or dialectal contraction meaning "myself."