underpants

/ˈʌndə(ɹ)ˌpænts/

//ˈʌndə(ɹ)ˌpænts// noun

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

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

The verdict

“underpants” has 16 generated spelling variants in the English index at frequency #32,221. The variants make it a useful spelling check.

#32,221
frequency rank, English
1,433
“U” headwords
16
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Underwear covering the genitalia and often buttocks, usually going no higher than the navel.

Corpus desk

Index EN-underpants · underpants · English

underpants · rank #32,221 · 16 variants · 1 confusable

  • FREQ-MID #32,221
  • LEN-MEGA 10 letters
  • VOW-3 3 vowels
  • CONFUS-LOW 1 pairs
  • VAR-HIGH 16 variants
  • BOOK-MID 1,433
  • PHOTO-FINISH underprivileg…

Nearest frequency peer: underprivileged (+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 “underpants”

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

corpus weight

What this shows “underpants” 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).

underpants vs underpass
80% similar

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

Key facts for underpants
PropertyValue
Headwordunderpants
LanguageEnglish
Part of speechNoun
IPA/ˈʌndə(ɹ)ˌpænts/
Letters10
Frequency rank#32,221
Misspellings tracked16
Confusable pairs1
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “underpants”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).underpantslands 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 “underprivileged” (#32,222), “tse” (#32,219), “UNHCR” (#32,224). Among 1,433 “U” headwords, “underpants” is #32,221. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 16 spelling variants around underpants (IPA /ˈʌndə(ɹ)ˌpænts/), anoun. Corpus frequency is #32,221 among 1,433 “U” headwords. Dominant gloss: "Underwear covering the genitalia and often buttocks, usually going no higher than the navel.".

Our generated misspelling index lists 16 likely wrong-spelling variants for underpants, with forms such as "nuderpants", "udnerpants", and "undderpants". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 1 confusable-pair relationship, "underpass", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From under- + pants. The correct English form is underpants, spelled U-N-D-E-R-P-A-N-T-S.

Definition

  1. 1
    Underwear covering the genitalia and often buttocks, usually going no higher than the navel.

Recorded use

Wiktionary examples

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

  1. The Italian fashion of wearing red underpants on December 31 is becoming popular, reputedly to guarantee luck for the new year.
  2. She takes off her fatigue pants and throws them in the washer and the surgical greens and her bloodstained bra and turns on the machine. She is wearing socks and underpants and a .38 Special with a shrouded hammer in an ankle holster.

Etymology

From under- + pants.

This word in other languages

calzoncillos(Español)caleçon(Français)Unterhose(Deutsch)cuecas(Português)

Common misspellings

Also misspelled as:

  • nuderpants
  • udnerpants
  • undderpants
  • undeprants
  • underapnts
  • underpannts
  • underpanst
  • underpantss
  • underpantts
  • underpatns
  • underpnats
  • underppants
  • underrpants
  • undrepants
  • unedrpants
  • unnderpants

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of underpants - 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.

nuderpants2udnerpants2undderpants1undeprants2underapnts2underpannts1underpanst2underpantss1
Edit distance from "underpants"

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 "underpants"?
"underpants" is spelled U-N-D-E-R-P-A-N-T-S. The IPA pronunciation is /ˈʌndə(ɹ)ˌpænts/.
What does "underpants" mean?
As a noun, "underpants" means: Underwear covering the genitalia and often buttocks, usually going no higher than the navel.
What words are commonly confused with "underpants"?
"underpants" is commonly confused with "underpass". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "underpants"?
The IPA (International Phonetic Alphabet) transcription for "underpants" is /ˈʌndə(ɹ)ˌpænts/. 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 "underpants"?
From under- + pants. 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 "underpants", not the corpus desk frequency band.

Same letter count

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

vegetative#32,231warranties#32,239stubbornly#32,198applauding#32,277

Similar misspelling depth

Headwords with a similar count of attested misspellings (16 here; floor ≥5).

schoolhouse16 variantsrevisionist16 variantsretroactive16 variantsdevaluation16 variants

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

Source: FrequencyWords open word-frequency list