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Tidemark
noun
Definitions
Noun
- 1 a line (of seaweed or differently coloured sand etc) on the shore showing the level of high or low tide
- 2 indicator consisting of a line at the highwater or low-water limits of the tides wordnet
- 3 any mark showing the limit of some past activity broadly
- 4 a line of scum left on a bath tub when the water is drained away humorous
Etymology
From tide + mark.
See also for "tidemark"
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Unscramble this word: tidemark