What does "foam" mean?
A substance composed of a large collection of bubbles or their solidified remains, especially
Foam
/foʊm/ noun, verb
noun, verb ·Common ·High school level
Meaning at a glance
- Primary sense: A substance composed of a large collection of bubbles or their solidified remains, especially
- Grammar: foam is listed as noun, verb.
- Nearest alternatives: froth, acid, aerate, aerated.
- Useful contrasts: calm, calm water, dense material.
- Usage evidence: The breaking waves formed foam.
How to use "foam"
- Start with the primary definition, then check the part of speech before placing the word in a sentence.
- Compare nearby synonyms to make sure "foam" 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 "foam" 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 "foam" as the right word for your sentence.
If your draft is formal, technical, persuasive, or sensitive, compare "foam" 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 "foam" is acting as noun, verb 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 "froth" 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 "foam", 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 A substance composed of a large collection of bubbles or their solidified remains, especially countable, uncountable
"Similarly, the biotech giant Cargill has begun manufacturing a polymer from vegetable oils that is used in polyurethane foams, which is found in beddings, furniture and car-seat headrests."
- 2 a mass of small bubbles formed in or on a liquid wordnet
- 3 A substance composed of a large collection of bubbles or their solidified remains, especially:; A collection of small bubbles created when the surface of a body of water is moved by tides, wind, etc. countable, uncountable
"’Tis thou that rigg’st the bark and plough’st the foam,"
- 4 a lightweight material in cellular form; made by introducing gas bubbles during manufacture wordnet
- 5 A substance composed of a large collection of bubbles or their solidified remains, especially:; A collection of small bubbles formed from bodily fluids such as saliva or sweat. countable, uncountable
"“Again. Tell it again!” cried Fagin, tightening his grasp on Sikes, and brandishing his other hand aloft as the foam flew from his lips."
Show 7 more definitions
- 6 A substance composed of a large collection of bubbles or their solidified remains, especially:; A collection of small bubbles on the surface of a liquid that is heated, fermented or carbonated. countable, uncountable
"a quart jug with a crown of foam upon it"
- 7 A substance composed of a large collection of bubbles or their solidified remains, especially:; A collection of small bubbles created by mixing soap with water. countable, uncountable
"[…] she concentrated on the foam in the sink, tempering the water."
- 8 A substance composed of a large collection of bubbles or their solidified remains, especially:; A collection of small bubbles formed by mixing an extinguishing agent with water, used to cover and extinguish fires. countable, uncountable
- 9 A material formed by trapping pockets of gas in a liquid or solid. countable, uncountable
"A foam mat can soften a hard seat."
- 10 The sea. countable, figuratively, poetic, uncountable
"He is in Europe, across the foam."
- 11 Fury, rage, ire. countable, uncountable
- 12 Sneakers. countable, in-plural, uncountable
Verb
- 1 To form or emit foam. intransitive
"[…] And that is it Hath made me rig my navy; at whose burthen The anger'd ocean foams; with which I meant To scourge the ingratitude that despiteful Rome Cast on my noble father."
- 2 become bubbly or frothy or foaming wordnet
- 3 To spew saliva as foam; to foam at the mouth. intransitive
"[…] to London will we march amain, And once again bestride our foaming steeds, And once again cry ‘Charge upon our foes!’ But never once again turn back and fly."
- 4 To coat or cover with foam.
"It used to be common practice to foam the runway prior to an emergency landing, in case a fuel-fed fire occurred."
Antonyms
Example
"The breaking waves formed foam."
Common questions
What is a synonym for "foam"?
Common synonyms include: froth, acid, aerate, aerated, air, alabaster.
How do you use "foam" in a sentence?
The breaking waves formed foam.
How do you pronounce "foam"?
Pronounced /foʊm/.
Etymology
From Middle English fom, foom, from Old English fām, from Proto-West Germanic *faim, from Proto-Germanic *faimaz, from Proto-Indo-European *(s)poHy-m-os, from *(s)poH(y)- (“foam”). Cognate with German Feim (“foam”), Latin spūma (“foam”), Latin pūmex (“pumice”), Sanskrit फेन (phéna, “foam”), possibly Northern Kurdish fê (“epilepsy”).