VocabularyBasePractice words

Meaning & use

pond scum

noun·Everydayinformal

Last updated

UK/ˈpɒnd skʌm/
US/ˈpɑːnd skʌm/

Meanings

  1. noununcountable

    The green layer of algae and tiny plants that floats on top of still, stagnant water.

    Grammar: No plural and no article is needed: the pond was covered in pond scum.

    Patterns

    • pond scum on something
    • covered in pond scum

    By August the garden pond was thick with pond scum.

    He skimmed the pond scum off the surface with a net.

    Pond scum can be a sign that the water has too many nutrients.

  2. noununcountableinformaldisapprovingfigurative

    A person regarded as extremely low, contemptible or morally worthless.

    Grammar: Used as an insult about a person, usually as 'be pond scum' or 'treat someone like pond scum'.

    Patterns

    • treat someone like pond scum
    • be lower than pond scum

    The workers said the owner treated them like pond scum.

    She called the scammer pond scum for stealing from elderly neighbors.

    In the film, the villain is described as lower than pond scum.

Common combinations

green pond scum
Green pond scum had spread across the whole pond.
skim off pond scum
Every weekend we skim off pond scum with a rake.
lower than pond scum
He felt lower than pond scum after lying to his friend.
treat like pond scum
No customer should be treated like pond scum.
thick layer of pond scum
A thick layer of pond scum blocked the sunlight.

Synonyms and how they differ

algae
Algae is the neutral scientific word for the organisms, while pond scum names the visible floating mat and sounds more casual.
slime
Slime stresses a slippery feel and can be used of people too, but pond scum points more specifically to stagnant water.
lowlife
Lowlife describes a despicable person directly, whereas pond scum is a stronger image of something filthy and worthless.

Opposites

saintclean water

Word family

scum noun
a film of dirt or impurities on a liquid, or a despised person
scummy adjective
covered with scum, or very unpleasant
pond noun
a small area of still water
skim verb
to remove a layer from the top of a liquid

Commonly confused: pond scum or pond life?

pond scum vs pond life

Pond life means the small creatures living in a pond, while pond scum is the floating layer or an insult.

Practice

The cruel landlord ignored every complaint and spoke to tenants like they were ___.

Make it your own

Write a sentence using “pond scum”, then check it and compare it with the examples above.

Your sentence stays on this page and is not sent anywhere.

Explore more words