orthogonal

/ɔːˈθɒɡ.ə.nəl/

//ɔːˈθɒɡ.ə.nəl// adj

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

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

The verdict

“orthogonal” has 15 generated spelling variants in the English index at frequency #29,772. The variants make it a useful spelling check.

#29,772
frequency rank, English
1,431
“O” headwords
15
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Of two objects, at right angles; perpendicular to each other.

Corpus desk

Index EN-orthogonal · orthogonal · English

orthogonal · rank #29,772 · 15 variants · 0 confusables

  • FREQ-MID #29,772
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-HIGH 15 variants
  • BOOK-MID 1,431
  • PHOTO-FINISH Ori

Nearest frequency peer: Ori (-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 “orthogonal”

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

corpus weight

What this shows “orthogonal” 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
Key facts for orthogonal
PropertyValue
Headwordorthogonal
LanguageEnglish
Part of speechAdjective
IPA/ɔːˈθɒɡ.ə.nəl/
Letters10
Frequency rank#29,772
Misspellings tracked15
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “orthogonal”

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).orthogonallands 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 “Ori” (#29,771), “oss” (#29,773), “onshore” (#29,770). Among 1,431 “O” headwords, “orthogonal” is #29,772. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 15 spelling variants around orthogonal (IPA /ɔːˈθɒɡ.ə.nəl/), anadjective. Corpus frequency is #29,772 among 1,431 “O” headwords. Wiktionary lists 9 senses, so context still picks the gloss.

Our generated misspelling index lists 15 likely wrong-spelling variants for orthogonal, with forms such as "orhtogonal", "orrthogonal", and "orthgoonal". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. We don't track a confusable pairing for this entry, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From Middle French orthogonal, in turn from Medieval Latin orthogōnālis and Latin orthogōnius (“right-angled”), ultimately from Ancient Greek ὀρθογώνιος (orthogṓnios, “rectangular”). By surface analysis, ortho- + -gon + -al. The correct English form is orthogonal, spelled O-R-T-H-O-G-O-N-A-L.

Definition

  1. 1
    Of two objects, at right angles; perpendicular to each other.
  2. 2
    Of a pair of vectors: having a zero inner product; perpendicular.
  3. 3
    Of a square matrix: such that its transpose is equal to its inverse.
  4. 4
    Of a linear transformation: preserving its angles.
  5. 5
    Of grid graphs, board games and polyominoes: vertical or horizontal but not diagonal.
  6. 6
    Of a pair of elements in an ortholattice: each less than or equal to the orthocomplement of the other.
  7. 7
    Statistically independent, with reference to variates.
  8. 8
    Of two or more aspects of a problem, able to be treated separately; of a design, exhibiting consistency and composability.
  9. 9
    Of two or more problems or subjects, independent of or irrelevant to each other.

Recorded use

Wiktionary examples

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

  1. A chord and the radius that bisects it are orthogonal.
  2. The normal vector and tangent vector at a given point are orthogonal.

Etymology

From Middle French orthogonal, in turn from Medieval Latin orthogōnālis and Latin orthogōnius (“right-angled”), ultimately from Ancient Greek ὀρθογώνιος (orthogṓnios, “rectangular”). By surface analysis, ortho- + -gon + -al.

This word in other languages

ortogonal(Español)orthogonal(Français)rechtwinklig(Deutsch)ortogonal(Português)

Common misspellings

Also misspelled as:

  • orhtogonal
  • orrthogonal
  • orthgoonal
  • orthhogonal
  • orthoggonal
  • orthognoal
  • orthogoanl
  • orthogonall
  • orthogonla
  • orthogonnal
  • orthoognal
  • ortohgonal
  • ortthogonal
  • otrhogonal
  • rothogonal

Misspelling Pattern Breakdown

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

orhtogonal2orrthogonal1orthgoonal2orthhogonal1orthoggonal1orthognoal2orthogoanl2orthogonall1
Edit distance from "orthogonal"

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 "orthogonal"?
"orthogonal" is spelled O-R-T-H-O-G-O-N-A-L. The IPA pronunciation is /ɔːˈθɒɡ.ə.nəl/.
What does "orthogonal" mean?
As an adjective, "orthogonal" means: Of two objects, at right angles; perpendicular to each other.
What are common misspellings of "orthogonal"?
Common misspellings include "orhtogonal", "orrthogonal", "orthgoonal", "orthhogonal", "orthoggonal". The correct spelling is "orthogonal".
How do you pronounce "orthogonal"?
The IPA (International Phonetic Alphabet) transcription for "orthogonal" is /ɔːˈθɒɡ.ə.nəl/. 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 "orthogonal"?
From Middle French orthogonal, in turn from Medieval Latin orthogōnālis and Latin orthogōnius (“right-angled”), ultimately from Ancient Greek ὀρθογώνιος (orthogṓnios, “rectangular”). By surface analysis, ortho- + -gon + -al. 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 "orthogonal", not the corpus desk frequency band.

Same letter count

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

postpartum#29,793senatorial#29,831Khrushchev#29,708subculture#29,850

Similar misspelling depth

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

Nordstrom15 variantspollination15 variantsmeritorious15 variantsmademoiselle15 variants

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

Source: FrequencyWords open word-frequency list