rein

/ɹeɪn/

//ɹeɪn// noun

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

"rein" is a 4-letter English headword indexed on PlainSpell.

The verdict

“rein” sits in 20 confusable pairs (corpus #17,934) as a noun. The look-alike neighbours are the real trap.

#17,934
frequency rank, English
3,094
“R” headwords
4
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A strap or rope attached to a bridle or bit, used to control a horse, other animal or young child.

Corpus desk

Index EN-rein · rein · English

rein · rank #17,934 · 4 variants · 20 confusables

  • FREQ-MID #17,934
  • LEN-MID 4 letters
  • VOW-2 2 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-LOW 4 variants
  • BOOK-MID 3,094
  • PHOTO-FINISH relic

Nearest frequency peer: relic (+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.

Frequency neighbours of confusable “rein”

Peers at similar corpus weight, separate from look-alike pairs below

corpus weight

What this shows Bars place “rein” against nearest ranked English headwords, not a reprint of the confusable-pair desk.

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).

rein vs RN
0% similar
rein vs RI
0% similar
rein vs run
50% similar

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

Key facts for rein
PropertyValue
Headwordrein
LanguageEnglish
Part of speechNoun
IPA/ɹeɪn/
Letters4
Frequency rank#17,934
Misspellings tracked4
Confusable pairs20
SourceWiktionary (kaikki.org)

Corpus rank beside confusables of “rein”

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

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “relic” (#17,935), “registrar” (#17,932), “retard” (#17,936). Among 3,094 “R” headwords, “rein” is #17,934. Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for rein is neighbouring look-alikes ("RN", "RI", …), not just typos; it is anoun pronounced /ɹeɪn/. Frequency #17,934 among 3,094 “R” headwords. 2 recorded senses keep meaning in play.

Our generated misspelling index lists 4 likely wrong-spelling variants for rein, with forms such as "reinn", "reni", and "rien". 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 20 confusable-pair relationships, "RN", "RI", "run", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English rein, reyne, from Anglo-Norman reyne, resne, from Early Medieval Latin retina, ultimately from Classical Latin retineō (“hold back”), from re- + teneō (“keep, hold”). Compare modern French rêne. Displaced native Old English brīdel (“brid… The correct English form is rein, spelled R-E-I-N.

Definition

  1. 1
    A strap or rope attached to a bridle or bit, used to control a horse, other animal or young child.
  2. 2
    An instrument or means of curbing, restraining, or governing.

Recorded use

Wiktionary examples

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

  1. The government is attempting to keep a rein on rising prices.
  2. Let their eyes rove without rein.

Etymology

From Middle English rein, reyne, from Anglo-Norman reyne, resne, from Early Medieval Latin retina, ultimately from Classical Latin retineō (“hold back”), from re- + teneō (“keep, hold”). Compare modern French rêne. Displaced native Old English brīdel (“bridle, rein”), Old English wealdleþer, ġewealdleþer (“rein, bridle”, literally “control strap”), Old English sāl (“cord, rein”), Old English tiġel (“rein”), and Old English lāttēh, lāttēh (“leash, rein”).

This word in other languages

rienda(Español)rêne(Français)Zügel(Deutsch)rédea(Português)

Common misspellings

Also misspelled as:

  • reinn
  • reni
  • rien
  • rrein

Misspelling Pattern Breakdown

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

reinn1reni2rien2rrein1
Edit distance from "rein"

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 "rein"?
"rein" is spelled R-E-I-N. The IPA pronunciation is /ɹeɪn/.
What does "rein" mean?
As a noun, "rein" means: A strap or rope attached to a bridle or bit, used to control a horse, other animal or young child.
What words are commonly confused with "rein"?
"rein" is commonly confused with "RN", "RI", "run". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "rein"?
The IPA (International Phonetic Alphabet) transcription for "rein" is /ɹeɪn/. 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 "rein"?
From Middle English rein, reyne, from Anglo-Norman reyne, resne, from Early Medieval Latin retina, ultimately from Classical Latin retineō (“hold back”), from re- + teneō (“keep, hold”). Compare modern French rêne. Displaced native Old English brī... 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 "rein", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 4 letters (nearest by frequency rank).

Soho#17,961moan#17,901stun#17,969tack#17,973

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

Source: FrequencyWords open word-frequency list