countersign

noun

"countersign" is a 11-letter English headword indexed on PlainSpell.

The verdict

“countersign” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
11
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A second signature added to a document to affirm the validity of the signature of the first person.

Corpus desk

Index EN-countersign · countersign · English

countersign · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 11 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "C" thin
  • PHOTO-UNK Peer pending

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.

Key facts for countersign
PropertyValue
Headwordcountersign
LanguageEnglish
Part of speechNoun
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “countersign” in English

countersignsits beyond the 100,000 most-frequent English words, in the long tail of technical, archaic, or otherwise rare vocabulary where spelling doubt tends to strike hardest.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

countersign is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

No misspelling variants are generated for countersign in our index, since its letter sequence doesn't invite the usual edit-distance slips. This entry stands alone in our confusable dataset, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From Middle French contresigne. Equivalent to counter- + sign. The correct English form is countersign, spelled C-O-U-N-T-E-R-S-I-G-N.

Definition

  1. 1
    A second signature added to a document to affirm the validity of the signature of the first person.
  2. 2
    The response to a sign or signal.

Recorded use

Wiktionary example

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

  1. Only those who give the countersign may enter the Masonic Lodge.

Etymology

From Middle French contresigne. Equivalent to counter- + sign.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "countersign"?
"countersign" is spelled C-O-U-N-T-E-R-S-I-G-N.
What does "countersign" mean?
As a noun, "countersign" means: A second signature added to a document to affirm the validity of the signature of the first person.
What is the origin of the word "countersign"?
From Middle French contresigne. Equivalent to counter- + sign. 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.

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

Source: FrequencyWords open word-frequency list