zwieback

noun

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

The verdict

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

Unranked
below top-frequency English
8
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A form of rusk, usually sweetened bread enriched with eggs that is baked and then sliced and toasted until dry and crisp; considered easy to digest and therefore given to the ill and used as a teet...

Corpus desk

Index EN-zwieback · zwieback · English

zwieback · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 8 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "Z" 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 zwieback
PropertyValue
Headwordzwieback
LanguageEnglish
Part of speechNoun
Letters8
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “zwieback” in English

zwiebacksits 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

zwieback is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A form of rusk, usually sweetened bread enriched with eggs that is baked and then sliced and toasted until dry and crisp; considered easy to digest and therefore given to the ill and used as a teet...".

zwieback doesn't appear in our generated misspelling index, since its letter pattern doesn't lend itself to common typo substitutions. This headword has no recorded confusable partner, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From German Zwieback, from zwie- (“twi-, two-”) + backen (“to bake”) (i.e. “twice-baked”), a calque of Italian biscotto (but not to be confused with it). The correct English form is zwieback, spelled Z-W-I-E-B-A-C-K.

Definition

  1. 1
    A form of rusk, usually sweetened bread enriched with eggs that is baked and then sliced and toasted until dry and crisp; considered easy to digest and therefore given to the ill and used as a teething food for toddlers.

Recorded use

Wiktionary example

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

  1. Ogden Nash, Adventures Of Isabel She nibbled the zwieback that she always fed off, And when it was gone, she cut the giant's head off.

Etymology

From German Zwieback, from zwie- (“twi-, two-”) + backen (“to bake”) (i.e. “twice-baked”), a calque of Italian biscotto (but not to be confused with it).

This word in other languages

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 "zwieback"?
"zwieback" is spelled Z-W-I-E-B-A-C-K.
What does "zwieback" mean?
As a noun, "zwieback" means: A form of rusk, usually sweetened bread enriched with eggs that is baked and then sliced and toasted until dry and crisp; considered easy to digest and therefore given to the ill and used as a teet...
What is the origin of the word "zwieback"?
From German Zwieback, from zwie- (“twi-, two-”) + backen (“to bake”) (i.e. “twice-baked”), a calque of Italian biscotto (but not to be confused with it). 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