arginine

/ˈɑɹɡɪniːn/

//ˈɑɹɡɪniːn// noun

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

"arginine" is a 8-letter English headword indexed on PlainSpell.

The verdict

“arginine” has 11 generated spelling variants in the English index at frequency #41,511. The variants make it a useful spelling check.

#41,511
frequency rank, English
3,931
“A” headwords
11
tracked misspellings
3
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An amino acid found in animal foods that plays an important role in several physiological processes.

Corpus desk

Index EN-arginine · arginine · English

arginine · rank #41,511 · 11 variants · 3 confusables

  • FREQ-MID #41,511
  • LEN-LONG 8 letters
  • VOW-4 4 vowels
  • CONFUS-LOW 3 pairs
  • VAR-MID 11 variants
  • BOOK-MID 3,931
  • PHOTO-FINISH archdeacon

Nearest frequency peer: archdeacon (-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 “arginine”

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

corpus weight

What this shows “arginine” 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).

arginine vs Argonne
63% similar
arginine vs asinine
75% similar
arginine vs argentine
78% similar

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

Key facts for arginine
PropertyValue
Headwordarginine
LanguageEnglish
Part of speechNoun
IPA/ˈɑɹɡɪniːn/
Letters8
Frequency rank#41,511
Misspellings tracked11
Confusable pairs3
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “arginine”

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).argininelands 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 “archdeacon” (#41,510), “armadillo” (#41,512), “armband” (#41,513). Among 3,931 “A” headwords, “arginine” is #41,511. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 11 spelling variants around arginine (IPA /ˈɑɹɡɪniːn/), anoun. Corpus frequency is #41,511 among 3,931 “A” headwords. Dominant gloss: "An amino acid found in animal foods that plays an important role in several physiological processes.".

Our generated misspelling index lists 11 likely wrong-spelling variants for arginine, with forms such as "agrinine", "argginine", and "argiinne". 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 3 confusable-pair relationships, "Argonne", "asinine", "argentine", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From German Arginin, from Ancient Greek ἄργυρος (árguros, “silver”) and ἀργινόεις (arginóeis, “silvery, brightly shining”) in reference to arginine nitrate crystals' silver-white appearance when first refined from lupin seedlings by Ernst Schulze and Ernst … The correct English form is arginine, spelled A-R-G-I-N-I-N-E.

Definition

  1. 1
    An amino acid found in animal foods that plays an important role in several physiological processes.

Recorded use

Wiktionary example

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

  1. Since arginine is a normal component and plays an important role in the glucose transport mechanism, arginates can easily serve as acceptors for glucose.

Etymology

From German Arginin, from Ancient Greek ἄργυρος (árguros, “silver”) and ἀργινόεις (arginóeis, “silvery, brightly shining”) in reference to arginine nitrate crystals' silver-white appearance when first refined from lupin seedlings by Ernst Schulze and Ernst Steiger in 1886.

Synonyms

Arg

This word in other languages

arginina(Español)arginine(Français)Arginin(Deutsch)

Common misspellings

Also misspelled as:

  • agrinine
  • argginine
  • argiinne
  • arginien
  • argininne
  • arginnie
  • arginnine
  • argniine
  • arignine
  • arrginine
  • raginine

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of arginine - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

agrinine2argginine1argiinne2arginien2argininne1arginnie2arginnine1argniine2
Edit distance from "arginine"

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 "arginine"?
"arginine" is spelled A-R-G-I-N-I-N-E. The IPA pronunciation is /ˈɑɹɡɪniːn/.
What does "arginine" mean?
As a noun, "arginine" means: An amino acid found in animal foods that plays an important role in several physiological processes.
What words are commonly confused with "arginine"?
"arginine" is commonly confused with "Argonne", "asinine", "argentine". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "arginine"?
The IPA (International Phonetic Alphabet) transcription for "arginine" is /ˈɑɹɡɪniːn/. 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 "arginine"?
From German Arginin, from Ancient Greek ἄργυρος (árguros, “silver”) and ἀργινόεις (arginóeis, “silvery, brightly shining”) in reference to arginine nitrate crystals' silver-white appearance when first refined from lupin seedlings by Ernst Schulze ... 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 "arginine", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 8 letters (nearest by frequency rank).

artefact#41,515Augustin#41,517bacillus#41,520barbeque#41,523

Similar misspelling depth

Headwords with a similar count of attested misspellings (11 here; floor ≥5).

armadillo11 variantsarmband11 variantsbinomial11 variantsbridger11 variants

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

Source: FrequencyWords open word-frequency list