waterline

/ˈwɔːtə(ɹ)laɪn/

//ˈwɔːtə(ɹ)laɪn// noun

By · According to Wiktionary data (CC BY-SA) ·

"waterline" is a 9-letter English headword indexed on PlainSpell.

The verdict

“waterline” has 13 generated spelling variants in the English index at frequency #45,742. The variants make it a useful spelling check.

#45,742
frequency rank, English
1,759
“W” headwords
13
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - 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

Corpus desk

Index EN-waterline · waterline · English

waterline · rank #45,742 · 13 variants · 2 confusables

  • FREQ-MID #45,742
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-LOW 2 pairs
  • VAR-HIGH 13 variants
  • BOOK-MID 1,759
  • PHOTO-FINISH wastage

Nearest frequency peer: wastage (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Rank peers near misspelling magnet “waterline”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “waterline” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

waterline vs waterside
78% similar
waterline vs watering
78% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for waterline
PropertyValue
Headwordwaterline
LanguageEnglish
Part of speechNoun
IPA/ˈwɔːtə(ɹ)laɪn/
Letters9
Frequency rank#45,742
Misspellings tracked13
Confusable pairs2
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “waterline”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).waterlinelands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “wastage” (#45,741), “Waxman” (#45,743), “weariness” (#45,744). Among 1,759 “W” headwords, “waterline” is #45,742. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 13 spelling variants around waterline (IPA /ˈwɔːtə(ɹ)laɪn/), anoun. Corpus frequency is #45,742 among 1,759 “W” headwords. Wiktionary lists 4 senses, so context still picks the gloss.

Our generated misspelling index lists 13 likely wrong-spelling variants for waterline, with forms such as "awterline", "waetrline", and "watelrine". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 2 confusable-pair relationships, "waterside", "watering", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From water + line. The correct English form is waterline, spelled W-A-T-E-R-L-I-N-E.

Definition

  1. 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
  2. 2
    A horizontal line indicating the shape of an airfoil.
  3. 3
    A line showing where the water has been, usually a line separating dry land and wet areas; a watermark or tidemark.
  4. 4
    The inner rim of the eyelid, just behind the lash line; primarily used in reference to the application of eyeliner.

Recorded use

Wiktionary example

These source excerpts show how waterline appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Down here along the waterline, the Enterprise has a belt of thick antitorpedo armor. It's not too promising.

Etymology

From water + line.

This word in other languages

línea de flotación(Español)ligne de flottaison(Français)Wasserlinie(Deutsch)

Common misspellings

Also misspelled as:

  • awterline
  • waetrline
  • watelrine
  • waterilne
  • waterlien
  • waterlinne
  • waterlline
  • waterlnie
  • waterrline
  • watreline
  • watterline
  • wtaerline
  • wwaterline

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of waterline - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

awterline2waetrline2watelrine2waterilne2waterlien2waterlinne1waterlline1waterlnie2
Edit distance from "waterline"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "waterline"?
"waterline" is spelled W-A-T-E-R-L-I-N-E. The IPA pronunciation is /ˈwɔːtə(ɹ)laɪn/.
What does "waterline" mean?
As a noun, "waterline" means: 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
What words are commonly confused with "waterline"?
"waterline" is commonly confused with "waterside", "watering". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "waterline"?
The IPA (International Phonetic Alphabet) transcription for "waterline" is /ˈwɔːtə(ɹ)laɪn/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "waterline"?
From water + line. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "waterline", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 9 letters (nearest by frequency rank).

weariness#45,744wheelbase#45,747wholeness#45,748valiantly#45,732

Similar misspelling depth

Headwords with a similar count of attested misspellings (13 here; floor ≥5).

trailhead13 variantsalrighty13 variantstimeshare13 variantsautocracy13 variants

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list