1. A fictional material (either a metal or crystalline mineral) that has a detrimental effect on Superman

Encyclopedia: Kryptonite

• sentimentalisation
• sentimentalise
• sentimentalism
• sentimentalist
• sentimentality
• sentimentalization
• sentimentalize
• sentimentally
• sentimentise
• sentimentize
• sentinel
• sentry
• sentry box
• sentry duty
• sentry go
• Seoul
• Sep
• Sep 11
• sepal
• sepaline
• sepaloid
• separability
• separable
• separably
• separate