X's and O's

noun

"x-s-and-o-s" is a 7-letter English headword indexed on PlainSpell.

The verdict

“X's and O's” 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) - tic-tac-toe

Corpus desk

Index EN-x-s-and-o-s · X's and O's · English

X's and O's · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 11 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "X" 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 X's and O's
PropertyValue
HeadwordX's and O's
LanguageEnglish
Part of speechNoun
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “X's and O's” in English

X's and O'sfalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

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

Rare enough to double-check

X's and O's is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 3 senses are on record.

The misspelling generator found no plausible variants for X's and O's, typically a sign the spelling maps closely to how the word sounds. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: Derived from the use of the letters X and O as common stand-ins for other concepts. The correct English form is X's and O's, spelled X-'-S- -A-N-D- -O-'-S.

Definition

  1. 1
    tic-tac-toe
  2. 2
    The fundamental elements of a play.
  3. 3
    The basic delineation of roles in a project.

Recorded use

Wiktionary examples

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

  1. Against one wall they had three chickens in three different cages with electric X's and O's to play X's and O's with the chicken. You insert 25 cents and the chicken would peck at an X. It was impossible to beat the chicken, because there was an electrical shock that made the chicken hit the right button.
  2. Before we can explore computer play at chess, let's start with a much simpler game: the game of tic-tac-toe (also called noughts and crosses, Xs and Os, or exy-ozys). This game is one of the first games that many kids learn.

Etymology

Derived from the use of the letters X and O as common stand-ins for other concepts.

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 "X's and O's"?
"X's and O's" is spelled X-'-S- -A-N-D- -O-'-S.
What does "X's and O's" mean?
As a noun, "X's and O's" means: tic-tac-toe
What is the origin of the word "X's and O's"?
Derived from the use of the letters X and O as common stand-ins for other concepts. 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