to-do

noun

"to-do" is a 4-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
5
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A fuss made over something.

Corpus desk

Index EN-to-do · to-do · English

to-do · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "T" 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 to-do
PropertyValue
Headwordto-do
LanguageEnglish
Part of speechNoun
Letters5
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “to-do” in English

to-dosits 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

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

Our edit-distance generator produced no likely misspellings for to-do, a sign its spelling follows regular English conventions. It is not paired with a close-neighbour confusable in our dataset, which typically means the spelling is too distinctive to be mistaken for another word.

Etymologically, the entry records: From to + do, formed on analogy with ado. Compare affair. The correct English form is to-do, spelled T-O---D-O.

Definition

  1. 1
    A fuss made over something.
  2. 2
    A task that has been noted as one that must be completed, especially on a list.

Recorded use

Wiktionary examples

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

  1. I was embarrassed that they made such a big to-do out of my birthday.
  2. Last year, Russell Brand caused another to-do. This time he wasn’t playing nasty jokes on Andrew Sachs, or boasting about the millions of people he’d slept with; he wasn’t calling George Bush a “retard”, or giving a Nazi salute at the GQ awards, or turning up to work dressed as Osama bin Laden […] No, this time he simply made a political statement.

Etymology

From to + do, formed on analogy with ado. Compare affair.

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 "to-do"?
"to-do" is spelled T-O---D-O.
What does "to-do" mean?
As a noun, "to-do" means: A fuss made over something.
What is the origin of the word "to-do"?
From to + do, formed on analogy with ado. Compare affair. 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