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slack water

slack water

1 7.9
A time when a tidal river or sea is nearly still as the tide turns
  • noun
  • /slæk ˈwɔːtər/
  • Specialized
translation icon : agua muerta
  • Moonlight's showing lines and circles in slack water.

Examples

  • The Columbia is no longer a river; it is a succession of slack-water pools behind dams.

    Academic text (1990)
  • It would be slack water soon, and the water would be almost silent, but it would still sound lonely.

    Fiction book (1992)
  • Benson put the canoe into the slack water at the head of the island.

    Fiction book (2001)
  • Benson gave Konrad a push out of the current and into the slack water along the rocks.

    Fiction book (2001)
  • It gained the slack water on the other side and bounded out of the river.

    Fiction book (2001)
  • Our journey took us through Lake Ferguson, one of the few slack water ports on the lower Mississippi (and the only one between Venice, Louisiana, and Memphis, Tennessee).

    Blog text (11)
  • After a moment of slack water, the flow reversed and began moving out once again, but much more slowly.

  • Benson put the canoe into the slack water at the head of the island.

  • Geese and coots called to each other in the slack water behind me, and osprey perched in the cottonwoods above.

Synonyms

still water
vsslack water
4 1.4

Calm water in a lake or pond with no waves

describes tidal calm at a tide turn rather than inland stillness
slack
vsslack water
1 8.0

A stretch of water where the current is slow or still

refers specifically to tidal calm occurring at the turn of the tide
slack tide
vsslack water
  • Specialized
1 7.0

A short time when the water is almost still before the current changes direction

includes both times and places when tidal water is nearly motionless

How Still

still water
4 1.4
slack water
  • Specialized
1 7.9
rough water
3 3.6

Surface Forms

slack water singular
slack waters plural

Morphology

slack + water

The meaning 'a time or place when the water is still or has little movement' is directly and transparently derived from combining 'slack' (little or no current) with 'water' (a body of water). This is a straightforward compositional noun phrase and the logic is cross-linguistically common, so a B1 learner who knows both words would readily infer the MWE meaning.

Etymology

Slack water comes from sailors watching the tide. They called the tide slack when it stopped moving, so slack water is the time when the water is almost still as the tide changes, and that is why it means 'a time or place when the water has very little movement'.