tidemark

C2 Topic:Nature & Landscape

US /ˈtaɪdˌmɑɹk/ UK /ˈtaɪdmɑːk/ See IPA manual

Freq #241853

Meanings

1

noun
a line on a shore or structure showing the highest or lowest level reached by a tide

A dark tidemark on the harbor wall showed how high the storm surge had risen.
2

noun
a line of seaweed, debris, or differently colored material left by the tide

Shells and driftwood formed a tidemark across the beach.
3

noun
a visible trace or boundary left by an earlier level of activity or liquid

The empty reservoir retained a pale tidemark around its concrete sides.

Thesaurus

Synonyms

1 noun · a line on a shore or... high-water markwaterlinetide line

2 noun · a line of seaweed, debris,... wrack linestrandline

3 noun · a visible trace or boundary... watermark trace boundary

Word family

Forms tidemarks

Related forms tide watermarkshorelinestrandline

Etymology

A transparent compound of tide + mark, originally a mark showing the limit reached by tidal water. The word later broadened to other lines or traces left by a former liquid level or activity.

Topics

Nature & Landscape

External links

# tidemark

**Type:** Word
**Level:** C2
**Part of speech:** noun
**IPA (US):** /ˈtaɪdˌmɑɹk/
**IPA (UK):** /ˈtaɪdmɑːk/
**Frequency rank:** 241853

## Meanings
1. a line on a shore or structure showing the highest or lowest level reached by a tide
2. a line of seaweed, debris, or differently colored material left by the tide
3. a visible trace or boundary left by an earlier level of activity or liquid

## Examples
- A dark tidemark on the harbor wall showed how high the storm surge had risen.
- Shells and driftwood formed a tidemark across the beach.
- The empty reservoir retained a pale tidemark around its concrete sides.

## Synonyms
- high-water mark
- waterline
- tide line
- wrack line
- strandline

## Related Forms
- tide
- watermark
- shoreline
- strandline

## Etymology
A transparent compound of tide + mark, originally a mark showing the limit reached by tidal water. The word later broadened to other lines or traces left by a former liquid level or activity.

## Topics
- Nature & Landscape

markdown