Englishfor English speakers
scum
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noun
a film of impurities or vegetation that can form on the surface of a liquid
—
verb
remove the scum from
—
noun
(= trash)
worthless people
pup
Noun
—
A young dog, wolf, fox, seal, shark and some other animals
The dog has had that bed since he was just a pup.
—
A young person who does not have much experience
The new teacher is a mere pup.