XO

noun

By · According to Wiktionary data (CC BY-SA) ·

"xo" is a 2-letter English headword indexed on PlainSpell.

The verdict

“XO” sits in 20 confusable pairs (corpus #24,641) as a noun. The look-alike neighbours are the real trap.

#24,641
frequency rank, English
54
“X” headwords
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Alternative letter-case form of xo (“hugs and kisses”).

Corpus desk

Index EN-xo · XO · English

XO · rank #24,641 · 0 variants · 20 confusables

  • FREQ-MID #24,641
  • LEN-SHORT 2 letters
  • VOW-1 1 vowel
  • CONFUS-HIGH 20 pairs
  • VAR-0 0 variants
  • BOOK-MID 54
  • PHOTO-FINISH wiz

Nearest frequency peer: wiz (-2 rank slots)

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.

Frequency neighbourhood for “XO”

Lower corpus rank = more everyday usage (inverted bar length for readability)

corpus weight

What this shows Bars show where “XO” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

XO vs XP
50% similar
XO vs Xt
50% similar
XO vs XR
50% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for XO
PropertyValue
HeadwordXO
LanguageEnglish
Part of speechNoun
Letters2
Frequency rank#24,641
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “XO” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).XOlands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “wiz” (#24,639), “adaptable” (#24,643), “WCW” (#24,638). Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for XO is neighbouring look-alikes ("XP", "Xt", …), not just typos; it is anoun. Frequency #24,641 among 54 “X” headwords. 2 recorded senses keep meaning in play.

Zero misspellings are on record for XO in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. It also participates in 20 confusable-pair relationships, "XP", "Xt", "XR", and more, where similar look or sound leads writers to substitute one word for another in context.

This entry carries no recorded etymology, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct English form is XO, spelled X-O.

Definition

  1. 1
    Alternative letter-case form of xo (“hugs and kisses”).
  2. 2
    Alternative form of X-O.

Recorded use

Wiktionary example

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

  1. Looking out on the substitute scene / Still going strong / XO, Mom

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "XO"?
"XO" is spelled X-O.
What does "XO" mean?
As a noun, "XO" means: Alternative letter-case form of xo (“hugs and kisses”).
What words are commonly confused with "XO"?
"XO" is commonly confused with "XP", "Xt", "XR". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What language does "XO" come from?
"XO" is a English word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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.

What to do next

You've looked up "XO". Here's where to go from here.

  • "XO" maps to 20 confusable pairs in this vintage; the highest-scored is "XP". View pair
  • Usage frequency rank #24,641 among English headwords in this corpus. Corpus statistics
  • Browse more English words in the "X" letter cohort. X–Z browse
  • PlainSpell rotates a curated Word of the Day from the English corpus, a passive way to discover vocabulary. Word of the Day

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list