朔

さく

first day of the lunar month

朔望

さくぼう

first and fifteenth days of the lunar month (corresponding to new moon and full moon)

朔風

さくふう

north wind

八朔

はっさく

Hassaku orange (Citrus hassaku)

正朔

せいさく せいついたち

beginning of the month or the year, New Year's Day, the calendar

大晦

おおつごもり

the last day of the year, New Year's Eve

晦渋

かいじゅう

ambiguous, obscure, equivocal

韜晦

とうかい

hidden (talents, etc.), self-concealment, self-effacement

晦冥

かいめい

darkness

朔望月

さくぼうげつ

synodic month

初朔日

はつついたち

first day of the second month

視告朔

こうさく

ceremony where the Emperor would inspect the records of attendance and absence of officials

朔望潮

さくぼうちょう

spring tide

大晦日

おおみそか

New Year's Eve, December 31st

晦ます

to conceal (oneself); to hide; to abscond

天地晦冥

てんちかいめい

The world is covered in darkness, All is plunged into darkness

自己韜晦

じことうかい

concealing one's talents, position, status, intentions, etc.

韜晦趣味

とうかいしゅみ

propensity to efface oneself, being prone to conceal one's talent

綿抜の朔日

わたぬきのついたち

1st day of the 4th month of the lunisolar calendar