Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun slack_water

2 senses of slack water

Sense 1
slack, slack water -- (a stretch of water without current or movement; "suddenly they were in a slack and the water was motionless")
       => stretch -- (a large and unbroken expanse or distance; "a stretch of highway"; "a stretch of clear water")

Sense 2
slack water, slack tide -- (the occurrence of relatively still water at the turn of the (low) tide)
       => tide -- (the periodic rise and fall of the sea level under the gravitational pull of the moon)