Jettison

/ˈdʒɛtɪsən/verb
Share

to get rid of something or someone that is not wanted or needed

Jettison means to throw or drop something from an aircraft, ship, or other vehicle, especially to lighten the load in an emergency. More broadly, it means to deliberately abandon, discard, or get rid of something that is no longer wanted or needed.

The word carries a sense of urgency and decisiveness — when you jettison something, you are not casually discarding it but deliberately throwing it overboard because keeping it is a liability. In figurative use, people jettison plans, ideas, relationships, or possessions that have become burdensome or counterproductive.

Build Vocabulary Now
Jettison - meaning and memory mnemonic

Do you know what Jettison means?

Answer a question to start building your vocabulary.

Memory Mnemonic

Keyword:

JET I SON

The keyword JET I SON comes from how Jettison sounds when spoken aloud. This pronunciation connection makes it easy to recall the keyword whenever you hear or see the word.

Memory Link

From the JET, I threw my SON's old toys overboard—time to get rid of things not wanted or needed!

Picture yourself in a JET, and your SON's old toys are weighing the plane down — so you open the hatch and throw them all overboard, getting rid of everything not wanted or needed to keep the plane in the air. JET I SON gives you the keyword, and the image of deliberately throwing things out of an aircraft to lighten the load captures the meaning of jettison. Visualise the toys tumbling through the sky as the jet climbs higher, finally free of the unnecessary weight.

Mnemonic connecting keyword and meaning

HOW TO MEMORIZE VOCABULARY

There are 3 steps to effectively memorising vocabulary.

Step 1: Derive a keyword from the word based on how the word is spelled or pronounced. Next time you see the word, you will be able to derive the keyword from it because it is based on the word.

Step 2: Form a visual memory link that connects the keyword and the meaning(s) of the word you are learning.

Step 3: Ensure to Visualise the image, see it in your imagination. This is important even if it takes a few seconds.

how-to-memorise


Usage Examples

  • The pilot was forced to jettison fuel before making the emergency landing.
  • The company jettisoned its underperforming product line to focus on its core business.
  • She jettisoned all her old textbooks after graduating, keeping only the ones she truly valued.
  • The political party jettisoned its controversial policy position ahead of the election.
  • In a bid to stay afloat, the sailors jettisoned cargo and supplies overboard during the storm.

Etymology of Jettison

From Anglo-French getteson, derived from Latin jactare, meaning "to throw." Originally a maritime legal term for goods thrown overboard to lighten a ship in distress. The figurative sense of discarding anything unwanted developed naturally from this vivid image of throwing things off a sinking vessel.


Synonyms & Antonyms of Jettison

Synonyms

discarddumpabandonthrow outscrapditchshed

Antonyms

retainkeephold ontopreservesave

Common Collocations with Jettison

jettison cargojettison fueljettison the planforced to jettisonjettison the ideajettison excess weightjettison overboarddecided to jettison

You've Learned It. Now Make Sure You Never Forget It.

The mnemonic visualisation above helps you learn this word instantly — no rote memorisation needed. But to move it into long-term memory, you still need to review it a few times.

This is where spaced repetition comes in — it shows you words right before you're about to forget them, so you spend less time reviewing and remember more. After just a few spaced reviews, you'll start recalling the meaning naturally — without even needing the keyword or memory link.

Spaced-repetition

Built In Spaced Repetition

You've learned this word using our mnemonic system — but to truly lock it into long-term memory, you need to review it at the right time. That's where spaced repetition comes in.

Our built-in spaced repetition system shows you words just before you're about to forget them, so you review less and remember more. After a few reviews, you'll recall the meaning naturally — without even needing the keyword or memory link.

Built-in-spaced-repetition

Explore Word List

You can explore the Word List for a pack from the dashboard. Once you have selected a pack, just clicks Words

word-list

Visualisation Help

Visualising the memory link is the most important step — it's what makes you remember the word on the very first try. Don't just read the memory link. Close your eyes and see it play out in your imagination.

The more vivid and detailed your mental image, the stronger the memory. Every word on VocabularyFast comes with a visualisation audio guide. Just look at the image, hit play, and follow the audio as it walks you through the scene.

This takes only a few seconds but makes all the difference between forgetting a word tomorrow and remembering it for life.

visualisation-helper-audio-for-each-word

Test Yourself With Quizzes

Quizzes are the fastest way to check if you've truly learned a word. Pick from two modes — see the word and recall the meaning, or see the meaning and recall the word.

Both directions strengthen your memory in different ways. Each quiz is 10 questions, so it only takes a minute or two. Take a quiz anytime to quickly spot which words need more review.

quizzes-test-yourself

Learn In Focused Groups

Words in each pack are organized into smaller, meaningful groups — not random lists. Each group contains words that share a theme, difficulty level, or frequency of appearance.

This lets you focus your learning on the words that matter most, rather than jumping between unrelated words. Start with the most commonly tested words and work your way through each group at your own pace.

words-are-grouped

Ready to boost your vocabulary?

Build Vocabulary Now