code word
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- a word or phrase with a secret meaning, often, specif., one used to convey an idea or attitude that cannot be openly divulged because it is socially or politically unacceptable
- a euphemistic word or phrase
See code word in American Heritage Dictionary 4
noun- A secret word or phrase used as a code name or password.
- A euphemism: “The Democrats' ‘populism’ is a code word for bigger farm subsidies and protectionism” (New Republic).