lady
嬙 centers on a woman of status: a lady, often a court lady or concubine. The meaning is narrow and refers to a specific female role.
嬙 combines 女 (woman) with 嗇, which likely contributes the sound. The character is used for a lady or concubine, but the exact historical development of 嗇 in this context is uncertain.
A woman 女 beside 嗇, a shape associated with a storehouse or enclosure. Imagine a lady kept in a secluded inner chamber, like a precious item stored away.
For ショウ, picture a lady in a showy court dress: show -> ショウ, and she is the lady of the court.