ball lightning

noun

"ball-lightning" is a 13-letter English headword indexed on PlainSpell.

The verdict

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

Unranked
below top-frequency English
14
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A short-lived glowing ball sometimes observed to float in the air and thought to consist of ionized gas associated with thunderstorms.

Corpus desk

Index EN-ball-lightning · ball lightning · English

ball lightning · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 14 letters
  • VOW-3 3 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 ball lightning
PropertyValue
Headwordball lightning
LanguageEnglish
Part of speechNoun
Letters14
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “ball lightning” in English

ball lightningsits 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

ball lightning is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A short-lived glowing ball sometimes observed to float in the air and thought to consist of ionized gas associated with thunderstorms.".

We couldn't generate a plausible misspelling set for ball lightning, a sign its spelling follows regular English conventions. No confusable counterpart is on file for this word, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: A calque of German Kugelblitz. The correct English form is ball lightning, spelled B-A-L-L- -L-I-G-H-T-N-I-N-G.

Definition

  1. 1
    A short-lived glowing ball sometimes observed to float in the air and thought to consist of ionized gas associated with thunderstorms.

Etymology

A calque of German Kugelblitz.

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 "ball lightning"?
"ball lightning" is spelled B-A-L-L- -L-I-G-H-T-N-I-N-G.
What does "ball lightning" mean?
As a noun, "ball lightning" means: A short-lived glowing ball sometimes observed to float in the air and thought to consist of ionized gas associated with thunderstorms.
What is the origin of the word "ball lightning"?
A calque of German Kugelblitz. 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