shibboleth

They’re the contrarian at the party who delights in puncturing polite shibboleths, unafraid to take on even their own tribes in pursuit of a deeper truth.

This isn’t an expression of fact about the border; it’s a shibboleth, designed to communicate that, all things considered, the chamber is still down with Trump’s leadership in general terms.

The anti-vaccine camp has seized on the threadbare shibboleths of “medical freedom” and “health freedom” — or “bodily autonomy,” as Vance put it.

In violation of virtually every shibboleth governing the conduct of samurai, her father assassinated a brutal lord for the sake of the realm.

The text bristles with shibboleths of the anti-tax movement, for example by blaming higher taxes on “unelected bureaucrats, empowered by politicians and the courts.”