Senses
癸 tenth heavenly stem
The last of the ten heavenly stems; the tenth in an ordered list, equivalent to "J" or "X" in Western systems. Also an ancient compass point of 15 degrees
癸 menstruation
(bound form) A literary term for a woman's menstruation.
癸 Gui
(bound form) A Chinese surname.
癸 deca-
A metric prefix representing ten (equivalent to the prefix deca-)