noun
first seven days of the year
Refers to the period from January 1st to 7th, considered the main New Year celebration. Often contrasted with 小正月 (こしょうがつ), the later New Year observance around January 15th.
See also: 小正月
大正月には親戚が集まってお祝いをする。
During the first seven days of the year, relatives gather to celebrate.
小正月 refers to the later New Year observance around January 15th, while 大正月 is the main celebration during the first seven days.
Compound of 大 (おお, 'big, main') and 正月 (しょうがつ, 'New Year'). The exact historical derivation is uncertain, but the term distinguishes the primary New Year period from 小正月.