irrigation (n.)
- ablution
- affusion
- aspersion
- baptism
- bath
- bathing
- dampening
- deluge
- douche
- elution
- enema
- flooding
- flush
- immersion
- inundation
- lavabo
- lavage
- lavation
- moistening
- mopping
- rinse
- rinsing
- scouring
- scrub
- scrubbing
- shampoo
- spattering
- splashing
- splattering
- sponge
- spraying
- sprinkling
- submersion
- swabbing
- wash
- washing
- washout
- washup
- watering
- wetting