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Definition of waterline

waterline

/ˈwɔː.tərˌlaɪn/
wa · ter · line
Plural:waterlines
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waterline Lexical Profile

waterline Game Scores & Validity

• noun

1

The level reached by the water on the side of a ship or boat, or a painted line corresponding to this level.

Example

"The heavy cargo caused the vessel to sit much lower in the harbor, submerging its painted waterline."

2

A mark or boundary left on a shore, wall, or bank indicating the highest or normal level reached by a body of water.

Example

"After the spring floods receded, a muddy waterline remained visible along the stone foundation of the bridge."

3

The inner rim of the eyelid where the eyelashes meet the moist surface of the eye, often used in cosmetics as a site for applying eyeliner.

Example

"The makeup artist applied a pale pencil along her lower waterline to make her eyes appear brighter and more awake."

Synonyms
View all synonyms for waterline

• Nearby Words

waterleaf
waterless
waterlily
waterline
waterlog
waterlogged
waterlogging

Cite this Entry

Wordmom. (2026). Definition of Waterline. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/waterline
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