exa- /ek-sə- or ek-sa-/

Denoting 10¹⁸

• water ballasts
• water barometer
• water barometers
• water barrel
• water barrels
• water bath
• water baths
• water batteries
• water battery
• water bear
• Water Bearer
• Water Bearers
• water bears
• water bed
• water beds
• water beetle
• water beetles
• water bellows
• water bird
• water birds
• water birth
• water births
• water biscuit
• water biscuits
• water blink