What does "fallout" mean?
The event of small airborne particles falling to the ground in significant quantities as a result of major industrial activity, volcano eruption, sandstorm, nuclear explosion, etc.
Fallout
/ˈfɔlˌaʊt/ noun
noun ·Moderate ·College level
Meaning at a glance
- Primary sense: The event of small airborne particles falling to the ground in significant quantities as a result of major industrial activity, volcano eruption, sandstorm, nuclear explosion, etc.
- Grammar: fallout is listed as noun.
- Nearest alternatives: a-blast, a-bomb shelter, activity, aftereffects.
- Useful contrasts: benefits, upside.
- Usage evidence: Strontium 90: One of the radioisotopes of strontium; part of radioactive fallout, harmful to human health.
How to use "fallout"
- Start with the primary definition, then check the part of speech before placing the word in a sentence.
- Compare nearby synonyms to make sure "fallout" carries the exact meaning, tone, and strength you need.
- Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.
Meaning check
- Does the word fit the sentence's grammar?
- Does it match the intended tone rather than only the dictionary definition?
- Would a simpler synonym be clearer for the reader?
- Is there enough surrounding context to prevent ambiguity?
Source and review context
This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "fallout" in a final draft.
If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.
Before you rely on this definition
Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "fallout" as the right word for your sentence.
If your draft is formal, technical, persuasive, or sensitive, compare "fallout" with a nearby alternative so the final choice matches both meaning and reader expectation.
Compare nearby meanings
- Use synonyms when you need a softer, stronger, simpler, or more specific word.
- Use antonyms to check the boundary of the meaning and avoid accidental contrast.
- Use the example sentence to confirm the word behaves naturally in context.
- Keep the original wording when a replacement adds complexity without improving precision.
Definition decision workflow
1. Identify the role
Check whether "fallout" is acting as noun in your sentence. A definition is only useful when the grammar matches the way the word is being used.
2. Test the nearest option
Compare it with "a-blast" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.
3. Confirm with context
Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.
Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.
Final meaning check
Before publishing a sentence with "fallout", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.
When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.
Definitions
Noun
- 1 The event of small airborne particles falling to the ground in significant quantities as a result of major industrial activity, volcano eruption, sandstorm, nuclear explosion, etc. countable, uncountable
"It was 5 February 2010 and Safdar had already dealt with the fallout of one explosion that day: an hour before, a motorbike laden with explosives had slammed into a bus carrying Shia Muslims to a religious procession."
- 2 any adverse and unwanted secondary effect wordnet
- 3 The particles themselves. countable, uncountable
"On 26 April 1986 the reactor number four at the Chernobyl Nuclear Power Plant located in the Soviet Union near Pripyat in Ukraine exploded. Further explosions and the resulting fire sent a plume of highly radioactive fallout into the atmosphere and over an extensive geographical area."
- 4 the radioactive particles that settle to the ground after a nuclear explosion wordnet
- 5 A negative side effect; an undesirable or unexpected consequence. countable, uncountable
"Psychological fallout in the shadow of terrorism"
Show 3 more definitions
- 6 A declined offer in a sales transaction when acceptance was presumed. countable, rare, uncountable
- 7 The person who declines such an offer. countable, rare, uncountable
- 8 An impromptu guest used to fill in for another guest spot who is a no-show or who has cancelled last minute. countable, uncountable
Synonyms
All synonymsExample
"Strontium 90: One of the radioisotopes of strontium; part of radioactive fallout, harmful to human health."
Common questions
What is a synonym for "fallout"?
Common synonyms include: a-blast, a-bomb shelter, activity, aftereffects, aftermath, aftermath effects.
How do you use "fallout" in a sentence?
Strontium 90: One of the radioisotopes of strontium; part of radioactive fallout, harmful to human health.
How do you pronounce "fallout"?
Pronounced /ˈfɔlˌaʊt/.
Etymology
Deverbal from fall out; fall + out.