headlong

/ˈhɛd.lɒŋ/

//ˈhɛd.lɒŋ// adv

"headlong" is a 8-letter English headword indexed on PlainSpell.

The verdict

“headlong” is a moderately-common English word, ranked #40,731 in English word frequency and used as an adverb.

#40,731
frequency rank, English
8
letters
12
tracked misspellings
4
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - With the head first or down.

Visual similarity to commonly confused words

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

headlong vs healing
75% similar
headlong vs heading
75% similar
headlong vs headline
75% similar

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

Key facts for headlong
PropertyValue
Headwordheadlong
LanguageEnglish
Part of speechAdverb
IPA/ˈhɛd.lɒŋ/
Letters8
Frequency rank#40,731
Misspellings tracked12
Confusable pairs4
SourceWiktionary (kaikki.org)

Where “headlong” 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). headlong lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for headlong is 8 letters long, classified as an adverb, and transcribed in the International Phonetic Alphabet as /ˈhɛd.lɒŋ/. Corpus data places it at rank #40,731 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 12 likely wrong-spelling variants for headlong, with forms such as "ehadlong", "haedlong", and "headdlong". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 4 confusable-pair relationships, "healing", "heading", "headline", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From Middle English hedlong, alteration of hedling, heedling, hevedlynge (“headlong”), assimilated to long. More at headling. The correct English form is headlong, spelled H-E-A-D-L-O-N-G.

Definition

  1. 1
    With the head first or down.
  2. 2
    With an unrestrained forward motion.
  3. 3
    Rashly; precipitately; without deliberation; in haste, hastily.

Etymology

From Middle English hedlong, alteration of hedling, heedling, hevedlynge (“headlong”), assimilated to long. More at headling.

Antonyms

This word in other languages

Common misspellings

Also misspelled as: ehadlong,haedlong,headdlong,headllong,headlnog,headlogn,headlongg,headlonng,headolng,healdong,hedalong,hheadlong

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of headlong - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

ehadlong2haedlong2headdlong1headllong1headlnog2headlogn2headlongg1headlonng1
Edit distance from "headlong"

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 "headlong"?
"headlong" is spelled H-E-A-D-L-O-N-G. The IPA pronunciation is /ˈhɛd.lɒŋ/.
What does "headlong" mean?
As an adverb, "headlong" means: With the head first or down.
What words are commonly confused with "headlong"?
"headlong" is commonly confused with "healing", "heading", "headline". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "headlong"?
The IPA (International Phonetic Alphabet) transcription for "headlong" is /ˈhɛd.lɒŋ/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "headlong"?
From Middle English hedlong, alteration of hedling, heedling, hevedlynge (“headlong”), assimilated to long. More at headling. 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.

Using “headlong”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is H-E-A-D-L-O-N-G - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈhɛd.lɒŋ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “healing” - see the side-by-side comparison. headlong vs healing
  • Browse more English words and confusable pairs in the same reference. English words
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 FrequencyWords open word-frequency list