物日
も
の
び
Meanings
1
holiday; special day
Refers to a day that is special or different from ordinary days, often a holiday or festival day. Compare with 紋日 (also read ものび), which can have a similar meaning but is more specifically associated with special days in the pleasure quarters.
See also: 紋日
Today is a holiday, so let's go out as a family.
2
day when prostitutes were obliged to take clients
archaic
Archaic term from the Edo period. On such days, prostitutes had to receive clients or pay a fee to avoid doing so. This sense is historical and not used in modern Japanese.
In the pleasure quarters of the Edo period, on 'monobi' days, prostitutes had to take clients.