underlined

verb

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

"underlined" is a 10-letter English headword indexed on PlainSpell.

The verdict

“underlined” has 15 generated spelling variants in the English index at frequency #25,629. The variants make it a useful spelling check.

#25,629
frequency rank, English
1,433
“U” headwords
15
tracked misspellings
5
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - simple past and past participle of underline

Corpus desk

Index EN-underlined · underlined · English

underlined · rank #25,629 · 15 variants · 5 confusables

  • FREQ-MID #25,629
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-MID 5 pairs
  • VAR-HIGH 15 variants
  • BOOK-MID 1,433
  • PHOTO-FINISH undercut

Nearest frequency peer: undercut (-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 “underlined”

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

corpus weight

What this shows “underlined” 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).

underlined vs undermine
80% similar
underlined vs undersized
80% similar
underlined vs underlie
80% similar

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

Key facts for underlined
PropertyValue
Headwordunderlined
LanguageEnglish
Part of speechVerb
Letters10
Frequency rank#25,629
Misspellings tracked15
Confusable pairs5
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “underlined”

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).underlinedlands here:

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “undercut” (#25,628), “unfriendly” (#25,630), “Tufts” (#25,626). Among 1,433 “U” headwords, “underlined” is #25,629. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 15 spelling variants around underlined, averb. Corpus frequency is #25,629 among 1,433 “U” headwords. Dominant gloss: "simple past and past participle of underline".

Our generated misspelling index lists 15 likely wrong-spelling variants for underlined, with forms such as "nuderlined", "udnerlined", and "undderlined". 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 5 confusable-pair relationships, "undermine", "undersized", "underlie", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

Wiktionary doesn't record an etymology for this headword, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct English form is underlined, spelled U-N-D-E-R-L-I-N-E-D.

Definition

  1. 1
    simple past and past participle of underline

Recorded use

Wiktionary example

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

  1. In HTML, wrapping text in <u> and </u> tags produces underlined text.

Common misspellings

Also misspelled as:

  • nuderlined
  • udnerlined
  • undderlined
  • undelrined
  • underilned
  • underliend
  • underlinde
  • underlinedd
  • underlinned
  • underllined
  • underlnied
  • underrlined
  • undrelined
  • unedrlined
  • unnderlined

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of underlined - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

nuderlined2udnerlined2undderlined1undelrined2underilned2underliend2underlinde2underlinedd1
Edit distance from "underlined"

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 "underlined"?
"underlined" is spelled U-N-D-E-R-L-I-N-E-D.
What does "underlined" mean?
As a verb, "underlined" means: simple past and past participle of underline
What words are commonly confused with "underlined"?
"underlined" is commonly confused with "undermine", "undersized", "underlie". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What language does "underlined" come from?
"underlined" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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 "underlined", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

unfriendly#25,630unlicensed#25,632thermostat#25,613supermodel#25,601

Similar misspelling depth

Headwords with a similar count of attested misspellings (15 here; floor ≥5).

transcend15 variantswrenching15 variantsbenefactor15 variantsbiographer15 variants

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

Source: FrequencyWords open word-frequency list