algorithm

/ˈælɡəɹɪðm̩/

//ˈælɡəɹɪðm̩// noun

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

The verdict

“algorithm” is a regularly-used English word, ranked #6,860 in English word frequency and used as a noun.

#6,860
frequency rank, English
9
letters
14
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A collection of ordered steps that solve a mathematical problem. A precise step-by-step plan for a computational procedure that possibly begins with an input value and yields an output value in a f...

Visual similarity to commonly confused words

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

algorithm vs algorithms
90% similar
algorithm vs algorithmic
82% similar

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

Key facts for algorithm
PropertyValue
Headwordalgorithm
LanguageEnglish
Part of speechNoun
IPA/ˈælɡəɹɪðm̩/
Letters9
Frequency rank#6,860
Misspellings tracked14
Confusable pairs2
SourceWiktionary (kaikki.org)

Where “algorithm” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). algorithm lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for algorithm is 9 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as /ˈælɡəɹɪðm̩/. Corpus data places it at rank #6,860 in overall English word frequency, indicating it appears regularly in written and spoken text. Wiktionary records 6 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 14 likely wrong-spelling variants for algorithm, with forms such as "aglorithm", "alggorithm", and "algoirthm". 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. It also participates in 2 confusable-pair relationships, "algorithms", "algorithmic", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: Etymology tree Arabic ال (al-) Old Persian 𐎢𐎺𐎠𐎼𐏀𐎷𐎡𐏁 (u-v-a-r-z-mi-i-š) Classical Persian خْوَارَزْم (xwārazm)bor. Arabic خَوَارِزْم (ḵawārizm) Arabic ـِيّ (-iyy) Arabic خَوَارِزْمِيّ (ḵawārizmiyy) Arabic الخَوَارِزْمِيّ (al-ḵawārizmiyy)bor. Medieval… The correct English form is algorithm, spelled A-L-G-O-R-I-T-H-M.

Definition

  1. 1
    A collection of ordered steps that solve a mathematical problem. A precise step-by-step plan for a computational procedure that possibly begins with an input value and yields an output value in a finite number of steps.
  2. 2
    A flowchart illustrating a decision-making process for human users, especially health care professionals.
  3. 3
    Calculation with Arabic numerals; algorism.
  4. 4
    recommender systems and the curation of feeds
  5. 5
    recommender systems and the curation of feeds
  6. 6
    recommender systems and the curation of feeds

Etymology

Etymology tree Arabic ال (al-) Old Persian 𐎢𐎺𐎠𐎼𐏀𐎷𐎡𐏁 (u-v-a-r-z-mi-i-š) Classical Persian خْوَارَزْم (xwārazm)bor. Arabic خَوَارِزْم (ḵawārizm) Arabic ـِيّ (-iyy) Arabic خَوَارِزْمِيّ (ḵawārizmiyy) Arabic الخَوَارِزْمِيّ (al-ḵawārizmiyy)bor. Medieval Latin algorismusbor. Anglo-Norman algorismebor. Middle English algorisme English algorism ▲ English arithmo-influ. English algorithm From Middle English algorisme, augrym, from Anglo-Norman algorisme, augrim, from Medieval Latin algorismus, from Arabic الخَوَارِزْمِيّ (al-ḵawārizmiyy), the nisba of Persian mathematician Muḥammad ibn Mūsā al-Khwārizmī and a toponymic name meaning "person from Chorasmia". The spelling change (-s- > -th-) was influenced by unrelated Ancient Greek ἀριθμός (arithmós) (whence English arithmo-).

This word in other languages

Common misspellings

Also misspelled as: aglorithm,alggorithm,algoirthm,algorihtm,algorithhm,algorithmm,algoritmh,algoritthm,algorrithm,algortihm,algroithm,allgorithm,alogrithm,lagorithm

Misspelling Pattern Breakdown

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

aglorithm2alggorithm1algoirthm2algorihtm2algorithhm1algorithmm1algoritmh2algoritthm1
Edit distance from "algorithm"

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 "algorithm"?
"algorithm" is spelled A-L-G-O-R-I-T-H-M. The IPA pronunciation is /ˈælɡəɹɪðm̩/.
What does "algorithm" mean?
As a noun, "algorithm" means: A collection of ordered steps that solve a mathematical problem. A precise step-by-step plan for a computational procedure that possibly begins with an input value and yields an output value in a f...
What words are commonly confused with "algorithm"?
"algorithm" is commonly confused with "algorithms", "algorithmic". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "algorithm"?
The IPA (International Phonetic Alphabet) transcription for "algorithm" is /ˈælɡəɹɪðm̩/. 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 "algorithm"?
Etymology tree Arabic ال (al-) Old Persian 𐎢𐎺𐎠𐎼𐏀𐎷𐎡𐏁 (u-v-a-r-z-mi-i-š) Classical Persian خْوَارَزْم (xwārazm)bor. Arabic خَوَارِزْم (ḵawārizm) Arabic ـِيّ (-iyy) Arabic خَوَارِزْمِيّ (ḵawārizmiyy) Arabic الخَوَارِزْمِيّ (al-ḵawārizmiyy)bor... 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.

Using “algorithm”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is A-L-G-O-R-I-T-H-M - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈælɡəɹɪðm̩/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “algorithms” - see the side-by-side comparison. algorithm vs algorithms
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list