Standard Lemma guide

waterline

noun · 6 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • /ˈwɔːtə(ɹ)laɪn/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • US: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

A line formed by the surface of the water on the hull of a ship when she is afloat; any of a series of short lines marked on the hull to show where the waterline would be under different loadings

Definition source: English Wiktionary via Wiktextract

Topics: nautical, transport

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A horizontal line indicating the shape of an airfoil.

Definition source: English Wiktionary via Wiktextract

Topics: aeronautics, aerospace, aviation, business, engineering, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A line showing where the water has been.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: watermark

Antonyms: none provided

4

noun

Meaning 4

The line formed by where the water level of a body of water currently is: where the water's surface currently meets the bank; it may move higher or lower depending on the weather, tide, or season.

Definition source: English Wiktionary via Wiktextract

Examples

  • Near-synonym: water's edge

Meaning relationships

Synonyms: water's edge

Antonyms: none provided

5

noun

Meaning 5

The inner rim of the eyelid, just behind the lash line; primarily used in reference to the application of eyeliner.

Definition source: English Wiktionary via Wiktextract

Topics: cosmetics, lifestyle

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

a line corresponding to the surface of the water when the vessel is afloat on an even keel; often painted on the hull of a ship

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: water line, water level

Antonyms: none provided

Broader terms: line

Narrower terms: load line, Plimsoll line, Plimsoll mark, Plimsoll

History

Etymology

From water + line.

Across languages

Translations

21 source translations are retained for this English entry.

  • Bulgarian: ватерлиния (vaterlinija) — line on the hull of a ship
  • Chinese Mandarin: 水線 /水线 (shuǐxiàn) — line on the hull of a ship
  • Czech: čára ponoru — line on the hull of a ship
  • Dutch: waterlijn — line on the hull of a ship
  • Esperanto: akvolinio — line on the hull of a ship
  • Finnish: vesilinja — line on the hull of a ship
  • French: ligne de flottaison — line on the hull of a ship
  • German: Wasserlinie — line on the hull of a ship
  • Greek: ίσαλος γραμμή (ísalos grammí) — line on the hull of a ship
  • Japanese: 喫水線 (kissuisen) — line on the hull of a ship
  • Polish: linia wodna — line on the hull of a ship
  • Polish: wodnica — line on the hull of a ship
  • Romanian: linie de plutire — line on the hull of a ship
  • Russian: ватерли́ния (vaterlínija) — line on the hull of a ship
  • Spanish: línea de flotación — line on the hull of a ship
  • Chinese Mandarin: 水線 /水线 (shuǐxiàn) — line on the land
  • Chinese Mandarin: 吃水線 /吃水线 (chīshuǐxiàn) — line on the land
  • Finnish: vesiraja — line on the land
  • German: Wasserstand — line on the land
  • Polish: linia wodna — line on the land
  • Polish: wodnica — line on the land