jettison

/ˈd͡ʒɛɾəsən/

//ˈd͡ʒɛɾəsən// noun

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

The verdict

“jettison” is uncommon English (frequency #50,612 among 4,872 “J” headwords), classed as a noun. The kind of spelling people second-guess.

#50,612
frequency rank, English
4,872
“J” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Items that have been or are about to be ejected from a boat or balloon.

Key facts for jettison
PropertyValue
Headwordjettison
LanguageEnglish
Part of speechNoun
IPA/ˈd͡ʒɛɾəsən/
Letters8
Frequency rank#50,612
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “jettison” 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). jettison lands here:

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

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

Rare enough to double-check

jettison is uncommon English at frequency #50,612 among 4,872 “J” headwords, classed as anoun, transcribed /ˈd͡ʒɛɾəsən/. Rarity is why readers land here mid-draft. 2 senses are on record.

Our edit-distance generator produced no likely misspellings for jettison, typically a sign the spelling maps closely to how the word sounds. It is not paired with a close-neighbour confusable in our dataset, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From Anglo-Norman getteson, from Old French getaison, from geter, jeter (modern French: would be *jetaison like pendaison); possibly from a Vulgar Latin *iectātiō, from *iectātus < iectāre, from Latin iactō. Doublet of jetsam. The correct English form is jettison, spelled J-E-T-T-I-S-O-N.

Definition

  1. 1
    Items that have been or are about to be ejected from a boat or balloon.
  2. 2
    The action of jettisoning items.

Etymology

From Anglo-Norman getteson, from Old French getaison, from geter, jeter (modern French: would be *jetaison like pendaison); possibly from a Vulgar Latin *iectātiō, from *iectātus < iectāre, from Latin iactō. Doublet of jetsam.

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); 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 "jettison"?
"jettison" is spelled J-E-T-T-I-S-O-N. The IPA pronunciation is /ˈd͡ʒɛɾəsən/.
What does "jettison" mean?
As a noun, "jettison" means: Items that have been or are about to be ejected from a boat or balloon.
How do you pronounce "jettison"?
The IPA (International Phonetic Alphabet) transcription for "jettison" is /ˈd͡ʒɛɾəsən/. 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 "jettison"?
From Anglo-Norman getteson, from Old French getaison, from geter, jeter (modern French: would be *jetaison like pendaison); possibly from a Vulgar Latin *iectātiō, from *iectātus < iectāre, from Latin iactō. Doublet of jetsam. 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 “jettison”

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

  • The one correct English spelling is J-E-T-T-I-S-O-N - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈd͡ʒɛɾəsən/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

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