Definition

Noun: 1. A line or mark left on a beach, shore, or object indicating the highest or lowest point reached by the tide. * This is the primary meaning, referring to a visible physical line created by water, debris, or a change in color or texture. 2. (British English, informal, humorous) A dirty line on the skin, typically around the neck, left by inadequate washing. * This figurative use compares the line of dirt to the line left by the tide on a shore.

Usage Examples

• Noun (literal):
  • We could see the tidemark of seaweed and shells left by the high tide.
  • The old pier's support posts were stained with a dark tidemark from years of tidal movement.
• Noun (figurative, informal):
  • After a week of camping, the children had a distinct tidemark around their necks.
  • (Humorous) He needs a proper bath; he's got a tidemark.

Advanced Usage

• The term can be used metaphorically to describe any clear line of demarcation or limit that has been reached.
  • The floodwater left a devastating tidemark on the walls of the houses.
  • The budget cuts represent a tidemark in the company's spending habits.

Variants and Related Words

• High-water mark: A more formal term often used synonymously with 'tidemark' for the highest point reached.
• Tide line: A simpler, more descriptive phrase for the same phenomenon.
• Strandline: A specific term used in geography and ecology for the line of debris deposited by the tide.

Synonyms

• Demarcation line: A line marking a boundary or limit.
• Waterline: The line where the water surface touches an object (like a ship), but not specifically tidal.
• Contour: A line on a map or a shape, but not specific to tides.

Related Phrases

• To leave a tidemark: To create such a line, either literally or figuratively.
  • The tea in the cup had left a tidemark on the inside.
• (British) To have a tidemark: To be visibly dirty with a line showing the limit of washing.
  • Go and wash properly; I don't want to see a tidemark!

Noun

1. indicator consisting of a line at the highwater or low-water limits of the tides