whatsit

noun

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

The verdict

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

Unranked
below top-frequency English
7
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A thing (used in a vague way to refer to something whose name one cannot recall, or that one is embarrassed to say)

Corpus desk

Index EN-whatsit · whatsit · English

whatsit · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 7 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "W" 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 whatsit
PropertyValue
Headwordwhatsit
LanguageEnglish
Part of speechNoun
Letters7
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “whatsit” in English

whatsitsits 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

whatsit is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A thing (used in a vague way to refer to something whose name one cannot recall, or that one is embarrassed to say)".

The misspelling generator found no plausible variants for whatsit, which points to an orthography that plays by predictable English rules. No confusable counterpart is on file for this word, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: Univerbation of what + is + it. The correct English form is whatsit, spelled W-H-A-T-S-I-T.

Definition

  1. 1
    A thing (used in a vague way to refer to something whose name one cannot recall, or that one is embarrassed to say)

Recorded use

Wiktionary example

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

  1. Pass me one of those whatsits, will you?

Etymology

Univerbation of what + is + it.

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 "whatsit"?
"whatsit" is spelled W-H-A-T-S-I-T.
What does "whatsit" mean?
As a noun, "whatsit" means: A thing (used in a vague way to refer to something whose name one cannot recall, or that one is embarrassed to say)
What is the origin of the word "whatsit"?
Univerbation of what + is + 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