lady
嫈 centers on the concept of a lady, with the given meaning simply referring to a woman or female person.
The exact historical development of 嫈 is uncertain. It combines 女 (woman) with a phonetic element that may be related to 榮 or similar forms, but the origin is not clearly established.
The bottom component is 女 (woman), and the upper part resembles a decorative headdress or elaborate top. Picture a lady adorned with an ornate headpiece.
For ショウ, imagine a lady in a show, wearing a fancy costume: show -> ショウ, and she is the star lady on stage.