The Kryptonian pentagon is a common shape used in Kryptonian culture and language.
The Kryptonian symbol for air is an infinity symbol rotated 90 degrees (resembling a figure 8) inside the Kryptonian pentagon. This symbol also represents the letter "S" in the Kryptonian/Earth-English alphabet. The House of El originally took this as their symbol and it eventually evolved with the insignia inside the pentagon resembling the Earth-English alphabet's "S."
- Season Three:
- Relic - The memory pendant used by Jor-El when he visited Earth in 1961 was the shape of the Kryptonian pentagon since the design was adapted from the House of El's original symbol.
- Covenant - When Clark Kent was taken into a pocket dimension in the Kawatche Caves by Jor-El to be reprogrammed as Kal-El, his body was held in an energy construct shaped like the Kryptonian pentagon.
- Season Four:
- Season Five:
- Season Seven: