1. Smallest flowering plants known; of the Americas
   - common wolffia

Type of: watermeal

• slain
• slake
• slaked
• slaked lime
• slalom
• slam
• slam dance
• slam dancing
• slam on
• slam-bang
• slam-dunk
• slammer
• slander
• slanderer
• unbalconied
• unbanded
• unbaptised
• unbaptized
• unbar
• unbarred
• unbarreled
• unbarrelled
• unbearable
• unbearably
• unbearded