Macmillan Dictionary

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Disloyal people

Judas

noun

someone who hurts a friend by behaving in a way that is not loyal

traitor

noun

someone who is not loyal to their friends, family, or employer

turncoat

noun

someone who stops supporting a particular group and joins an opposing group

rat

noun

someone who is not loyal or who tricks you

fifth column

noun

a group of people who secretly support enemies of their country or opponents of the organization they belong to

ratfink

noun

someone who cannot be trusted, especially someone who is not loyal to their friends

a snake in the grass

someone you cannot trust

fifth columnist

noun

betrayer

noun

charticle

a news article that consists of a chart … and only has a small amount of text

BuzzWord Article

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electron

a part of an atom that moves around the nucleus (=centre) and has a negative electrical charge

Open Dictionary

never event

an event that should never occur in a healthcare setting …

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