jmdict
2851019
Active
(id:
2153238)
一六日 [いちろくび] /(n) (hist) Edo period to early Meiji non-working day falling on all days of the month with a 1 or a 6 in it (when written in kanji numerals, i.e. the 1st, 11th, 16th, 21st and 26th days of the month)/EntL2851019/