versin /vûrˈsin/ or versine /vûrˈsīn/ (mathematics)

Short for versed sine (see under versed²)

• water gun
• water guns
• water hammer
• water hammers
• water head
• water heads
• water-heater
• water-heaters
• water hemlock
• water hemlocks
• waterhen
• waterhens
• water hole
• water holes
• water horehound
• water horse
• water horses
• water hyacinth
• water hyacinths
• water ice
• water ices
• waterier
• wateriest
• wateriness
• wallboards