spial /spīˈəl/ (obsolete)

1. Observation, watch
2. A spy, scout

• water engine
• water engines
• water equivalent
• water equivalents
• waterer
• waterers
• waterfall
• waterfalls
• water fern
• water ferns
• water-finder
• water-finders
• water flag
• water flags
• water flea
• water fleas
• water flies
• water flood
• waterflood
• waterflooding
• water floods
• water flow
• water flowers
• water-flowing
• water flows