This is the 5653rd most frequent Polish word.
wodno
"Water-related" or "aquatic."
Here, 'wodno-' is used as a prefix in a compound word to describe an object that is related to water and land.
To jest wodno-lądowy pojazd.
This is an amphibious vehicle.
'Wodno-' refers to matters related to water, combined with 'kanalizacyjnej' to describe the type of network.
Plan ten obejmuje zbudowanie wodno-kanalizacyjnej sieci.
This plan includes the construction of a water and sewage system.
This usage of 'wodno-' describes something related to water and oceans.