noun
Uncommon
scum
skuhm
Scum (noun) means a thin layer of dirt, foam, or other impurities that gathers on the surface of a liquid. Example: “Green scum had formed across the surface of the stagnant pond.”
noun
1
A thin layer of dirt, foam, or other impurities that gathers on the surface of a liquid.
"During smelting, scum rises to the surface and is then removed by the smelter."
"Green scum had formed across the surface of the stagnant pond."
2
A thoroughly contemptible or worthless person, or such people collectively.
"The judge called the fraudster "the scum of the earth.""
How to use scum
Learner’s notesIn plain EnglishEither the grimy film on top of a liquid, or (as an insult) a despicable person.
When to use it
The "despicable person" sense is a strong insult — quite vulgar and confrontational.
Common pairings
pond scum
scum of the earth
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Word forms
- Plural
- scums
- Third person singular
- scums
- Past tense
- scummed
Fill the gap
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Green _____ had formed across the surface of the stagnant pond.
Etymology
From Middle English scum, related to Middle Dutch schume ("foam"); ultimately from a Germanic root meaning "froth" or "to cover." Related to "skim."
Related words
Rhymes for scum
See all rhymes for scum →Frequently asked questions
What does “scum” mean?
The word “scum” means a thin layer of dirt, foam, or other impurities that gathers on the surface of a liquid. In plain terms, either the grimy film on top of a liquid, or (as an insult) a despicable person.
How do you pronounce “scum”?
“Scum” is pronounced skuhm (/skʌm/ in IPA).
How do you use “scum” in a sentence?
Here is “scum” used in a sentence: “Green scum had formed across the surface of the stagnant pond.”
What part of speech is “scum”?
“Scum” is a noun.
Where does the word “scum” come from?
The word “scum” comes from Middle English. From Middle English scum, related to Middle Dutch schume ("foam"); ultimately from a Germanic root meaning "froth" or "to cover." Related to "skim.".
Is “scum” a common word?
“Scum” is an uncommon word in modern English.
How many meanings does “scum” have?
“Scum” has 2 distinct senses listed in this dictionary. The most common is: a thin layer of dirt, foam, or other impurities that gathers on the surface of a liquid.
What is the difference between scum and slime?
Scum refers to a thin layer of dirt, foam, or other impurities that gathers on the surface of a liquid, while slime is a thick, slippery substance rather than a surface layer. Scum specifically describes something floating on top, such as on a pond.
Is calling someone "scum" offensive?
Yes, using "scum" to describe a person is a strongly insulting term meaning someone is thoroughly contemptible or worthless. It is considered harsh and informal, and inappropriate in polite or formal contexts.
What does "pond scum" refer to?
"Pond scum" refers literally to the layer of algae or impurities that forms on the surface of still water, using the literal sense of scum. It is also used figuratively as an insult for a despicable person.
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