be born yesterday

verb

"be-born-yesterday" is a 15-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
17
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To be new, naive, innocent, inexperienced, or easily deceived.

Corpus desk

Index EN-be-born-yesterday · be born yesterday · English

be born yesterday · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 17 letters
  • VOW-7 7 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "B" 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 be born yesterday
PropertyValue
Headwordbe born yesterday
LanguageEnglish
Part of speechVerb
Letters17
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “be born yesterday” in English

be born yesterdaysits 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

be born yesterday is uncommon English outside the top frequency list, classed as averb. Rarity is why readers land here mid-draft. Gloss: "To be new, naive, innocent, inexperienced, or easily deceived.".

No generated misspelling entries exist for be born yesterday in our index, typically a sign the spelling maps closely to how the word sounds. No confusable counterpart is on file for this word, which tends to mean the word is visually distinctive enough to stand on its own.

No explicit etymology string is stored for this entry, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct English form is be born yesterday, spelled B-E- -B-O-R-N- -Y-E-S-T-E-R-D-A-Y.

Definition

  1. 1
    To be new, naive, innocent, inexperienced, or easily deceived.

Recorded use

Wiktionary examples

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

  1. I was not born yesterday, you know. I have done this before!
  2. "Do you think," he added, with an ironical grin, "that you'll go for to gammon me into that air! I'm hinnocent, I know, but I wasn't born yesterday exactly."

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 "be born yesterday"?
"be born yesterday" is spelled B-E- -B-O-R-N- -Y-E-S-T-E-R-D-A-Y.
What does "be born yesterday" mean?
As a verb, "be born yesterday" means: To be new, naive, innocent, inexperienced, or easily deceived.
What language does "be born yesterday" come from?
"be born yesterday" is a English word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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