The kanji 朔 primarily represents the "first day of the month" or "new moon." It signifies the beginning of a lunar month, the time when the moon is not visible in the sky. It also carries connotations of the start, origin, or commencement of something.

・On-yomi (音読み): Saku (サク) ・Kun-yomi (訓読み): None

⚫︎ 朔日 (ついたち) Translation: The first day of the month. ⚫︎ 朔月 (さくげつ) Translation: The first month of the lunar calendar. ⚫︎ 朔旦冬至 (さくたんとうじ) Translation: The first day of the month of the winter solstice (a rare calendrical coincidence)

The kanji 朔 is a pictograph. It depicts the moon (月) at the beginning of the month, specifically when it is a new moon, barely visible. The shape is a combination of 月 (moon) and a symbol representing the start or beginning. The character visually symbolizes the moon's position when it is newly born and marks the start of the lunar cycle.