relaxin

noun

"relaxin" is a 7-letter English headword indexed on PlainSpell.

The verdict

“relaxin” is uncommon English (frequency #99,762 among 21,470 “R” headwords), classed as a noun. The kind of spelling people second-guess.

#99,762
frequency rank, English
21,470
“R” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A peptide hormone of the insulin superfamily.

Key facts for relaxin
PropertyValue
Headwordrelaxin
LanguageEnglish
Part of speechNoun
Letters7
Frequency rank#99,762
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “relaxin” 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). relaxin lands here:

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

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

Rare enough to double-check

relaxin is uncommon English at frequency #99,762 among 21,470 “R” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A peptide hormone of the insulin superfamily.".

Our edit-distance generator produced no likely misspellings for relaxin, and the word's spelling is regular enough that our generator found nothing worth flagging. No confusable counterpart is on file for this word, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From relax + -in. The correct English form is relaxin, spelled R-E-L-A-X-I-N.

Definition

  1. 1
    A peptide hormone of the insulin superfamily.

Etymology

From relax + -in.

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 "relaxin"?
"relaxin" is spelled R-E-L-A-X-I-N.
What does "relaxin" mean?
As a noun, "relaxin" means: A peptide hormone of the insulin superfamily.
What is the origin of the word "relaxin"?
From relax + -in. 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 “relaxin”

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

  • The one correct English spelling is R-E-L-A-X-I-N - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

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